diff --git a/litegraph b/litegraph
index cd24bc7..39b040a 160000
--- a/litegraph
+++ b/litegraph
@@ -1 +1 @@
-Subproject commit cd24bc7356572250a5b3ec2320da1b8a73ddf2cc
+Subproject commit 39b040a0b148ef0aa248562720d904150ad61859
diff --git a/src/lib/components/ComfyApp.ts b/src/lib/components/ComfyApp.ts
index 1808b6f..1979524 100644
--- a/src/lib/components/ComfyApp.ts
+++ b/src/lib/components/ComfyApp.ts
@@ -439,7 +439,7 @@ export default class ComfyApp {
             const n = workflow.nodes.find((n) => n.id === node_.id);
 
             if (!node_.isBackendNode) {
-                console.debug("Not serializing node: ", node_.type)
+                // console.debug("Not serializing node: ", node_.type)
                 continue;
             }
 
@@ -564,8 +564,8 @@ export default class ComfyApp {
             }
         }
 
-        console.warn({ workflow, output })
-        console.warn(promptToGraphVis({ workflow, output }))
+        // console.debug({ workflow, output })
+        // console.debug(promptToGraphVis({ workflow, output }))
 
         return { workflow, output };
     }
diff --git a/src/lib/components/ComfyProperties.svelte b/src/lib/components/ComfyProperties.svelte
index 3017b08..8ddb036 100644
--- a/src/lib/components/ComfyProperties.svelte
+++ b/src/lib/components/ComfyProperties.svelte
@@ -99,11 +99,16 @@
      if (spec.canShow)
          return spec.canShow(widget);
 
-     if (widget.type === "widget" && spec.validNodeTypes) {
-         const node = (widget as WidgetLayout).node
-         if (!node)
+     if (spec.validNodeTypes) {
+         if (widget.type === "widget") {
+             const node = (widget as WidgetLayout).node
+             if (!node)
+                 return false;
+             return spec.validNodeTypes.indexOf(node.type) !== -1;
+         }
+         else if (widget.type === "container") {
              return false;
-         return spec.validNodeTypes.indexOf(node.type) !== -1;
+         }
      }
 
      return spec.name in widget.attrs
diff --git a/src/lib/nodes/ComfyActionNodes.ts b/src/lib/nodes/ComfyActionNodes.ts
index beeda87..39a66b4 100644
--- a/src/lib/nodes/ComfyActionNodes.ts
+++ b/src/lib/nodes/ComfyActionNodes.ts
@@ -112,7 +112,7 @@ export class ComfyCopyAction extends ComfyGraphNode {
             { name: "copy", type: BuiltInSlotType.ACTION }
         ],
         outputs: [
-            { name: "out", type: "*" }
+            { name: "out", type: BuiltInSlotType.EVENT }
         ],
     }
 
@@ -130,13 +130,15 @@ export class ComfyCopyAction extends ComfyGraphNode {
     }
 
     override onExecute() {
-        this.setProperty("value", this.getInputData(0))
+        if (this.getInputLink(0))
+            this.setProperty("value", this.getInputData(0))
     }
 
     override onAction(action: any, param: any) {
-        this.setProperty("value", this.getInputData(0))
-        this.setOutputData(0, this.properties.value)
-        console.log("setData", this.properties.value)
+        if (action === "copy") {
+            this.setProperty("value", this.getInputData(0))
+            this.triggerSlot(0, this.properties.value)
+        }
     };
 }
 
diff --git a/src/lib/nodes/ComfyImageCacheNode.ts b/src/lib/nodes/ComfyImageCacheNode.ts
index 728557b..51fee60 100644
--- a/src/lib/nodes/ComfyImageCacheNode.ts
+++ b/src/lib/nodes/ComfyImageCacheNode.ts
@@ -1,4 +1,4 @@
-import { BuiltInSlotType, LiteGraph, type ITextWidget, type SlotLayout, clamp } from "@litegraph-ts/core";
+import { BuiltInSlotType, LiteGraph, type ITextWidget, type SlotLayout, clamp, type PropertyLayout, type IComboWidget } from "@litegraph-ts/core";
 import ComfyGraphNode from "./ComfyGraphNode";
 import type { GalleryOutput } from "./ComfyWidgetNodes";
 
@@ -6,7 +6,8 @@ export interface ComfyImageCacheNodeProperties extends Record<any, any> {
     images: GalleryOutput | null,
     index: number,
     filenames: Record<number, { filename: string | null, status: ImageCacheState }>,
-    genNumber: number
+    genNumber: number,
+    updateMode: "replace" | "append"
 }
 
 type ImageCacheState = "none" | "uploading" | "failed" | "cached"
@@ -20,7 +21,8 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
         images: null,
         index: 0,
         filenames: {},
-        genNumber: 0
+        genNumber: 0,
+        updateMode: "replace"
     }
 
     static slotLayout: SlotLayout = {
@@ -36,11 +38,15 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
         ]
     }
 
+    static propertyLayout: PropertyLayout = [
+        { name: "updateMode", defaultValue: "replace", type: "enum", options: { values: ["replace", "append"] } }
+    ]
+
     private _uploadPromise: Promise<void> | null = null;
-    private _state: ImageCacheState = "none"
 
     stateWidget: ITextWidget;
     filenameWidget: ITextWidget;
+    modeWidget: IComboWidget;
 
     constructor(name?: string) {
         super(name)
@@ -57,6 +63,14 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
             ""
         );
         this.filenameWidget.disabled = true;
+
+        this.modeWidget = this.addWidget<IComboWidget>(
+            "combo",
+            "Mode",
+            this.properties.updateMode,
+            null,
+            { property: "updateMode", values: ["replace", "append"] }
+        );
     }
 
     override onPropertyChanged(property: string, value: any, prevValue?: any) {
@@ -66,13 +80,23 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
             else
                 this.properties.index = 0
         }
+        else if (property === "updateMode") {
+            this.modeWidget.value = value;
+        }
 
+        this.updateWidgets()
+    }
+
+    private updateWidgets() {
         if (this.properties.filenames && this.properties.images) {
             const fileCount = this.properties.images.images.length;
             const cachedCount = Object.keys(this.properties.filenames).length
             console.warn(cachedCount, this.properties.filenames)
             this.filenameWidget.value = `${fileCount} files, ${cachedCount} cached`
         }
+        else {
+            this.filenameWidget.value = `No files cached`
+        }
     }
 
     override onExecute() {
@@ -185,6 +209,7 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
             this.setProperty("images", null)
             this.setProperty("filenames", {})
             this.setProperty("index", 0)
+            this.updateWidgets();
             return
         }
 
@@ -192,11 +217,24 @@ export default class ComfyImageCacheNode extends ComfyGraphNode {
 
         if (link.data && "images" in link.data) {
             this.setProperty("genNumber", this.properties.genNumber + 1)
-            this.setProperty("images", link.data as GalleryOutput)
-            this.setProperty("filenames", {})
-            console.debug("[ComfyImageCacheNode] Received output!", link.data)
+
+            const output = link.data as GalleryOutput;
+
+            if (this.properties.updateMode === "append" && this.properties.images != null) {
+                const newImages = this.properties.images.images.concat(output.images)
+                this.properties.images.images = newImages
+                this.setProperty("images", this.properties.images)
+            }
+            else {
+                this.setProperty("images", link.data as GalleryOutput)
+                this.setProperty("filenames", {})
+            }
+
+            console.debug("[ComfyImageCacheNode] Received output!", output, this.properties.updateMode, this.properties.images)
             this.setIndex(0, true)
         }
+
+        this.updateWidgets();
     }
 }
 
diff --git a/src/lib/nodes/ComfyWidgetNodes.ts b/src/lib/nodes/ComfyWidgetNodes.ts
index a1aa2dc..095cce6 100644
--- a/src/lib/nodes/ComfyWidgetNodes.ts
+++ b/src/lib/nodes/ComfyWidgetNodes.ts
@@ -1,10 +1,11 @@
-import { LiteGraph, type ContextMenuItem, type LGraphNode, type Vector2, LConnectionKind, LLink, LGraphCanvas, type SlotType, TitleMode, type SlotLayout, LGraph, type INodeInputSlot, type ITextWidget, type INodeOutputSlot, type SerializedLGraphNode, BuiltInSlotType, type PropertyLayout } from "@litegraph-ts/core";
+import { LiteGraph, type ContextMenuItem, type LGraphNode, type Vector2, LConnectionKind, LLink, LGraphCanvas, type SlotType, TitleMode, type SlotLayout, LGraph, type INodeInputSlot, type ITextWidget, type INodeOutputSlot, type SerializedLGraphNode, BuiltInSlotType, type PropertyLayout, type IComboWidget } from "@litegraph-ts/core";
 import ComfyGraphNode from "./ComfyGraphNode";
 import ComboWidget from "$lib/widgets/ComboWidget.svelte";
 import RangeWidget from "$lib/widgets/RangeWidget.svelte";
 import TextWidget from "$lib/widgets/TextWidget.svelte";
 import GalleryWidget from "$lib/widgets/GalleryWidget.svelte";
 import ButtonWidget from "$lib/widgets/ButtonWidget.svelte";
+import CheckboxWidget from "$lib/widgets/CheckboxWidget.svelte";
 import type { SvelteComponentDev } from "svelte/internal";
 import { Watch } from "@litegraph-ts/nodes-basic";
 import type IComfyInputSlot from "$lib/IComfyInputSlot";
@@ -48,8 +49,11 @@ export abstract class ComfyWidgetNode<T = any> extends ComfyGraphNode {
     override isBackendNode = false;
     override serialize_widgets = true;
 
-    outputIndex: number | null = 0;
+    // input slots
     inputIndex: number = 0;
+
+    // output slots
+    outputIndex: number | null = 0;
     changedIndex: number | null = 1;
 
     displayWidget: ITextWidget;
@@ -94,7 +98,7 @@ export abstract class ComfyWidgetNode<T = any> extends ComfyGraphNode {
         if (this.outputIndex !== null && this.outputs.length >= this.outputIndex) {
             this.setOutputData(this.outputIndex, get(this.value))
         }
-        if (this.changedIndex !== null & this.outputs.length >= this.changedIndex) {
+        if (this.changedIndex !== null && this.outputs.length >= this.changedIndex) {
             const changedOutput = this.outputs[this.changedIndex]
             if (changedOutput.type === BuiltInSlotType.EVENT)
                 this.triggerSlot(this.changedIndex, "changed")
@@ -118,10 +122,8 @@ export abstract class ComfyWidgetNode<T = any> extends ComfyGraphNode {
         if (this.copyFromInputLink) {
             if (this.inputs.length >= this.inputIndex) {
                 const data = this.getInputData(this.inputIndex)
-                if (data) { // TODO can "null" be a legitimate value here?
+                if (data != null) { // TODO can "null" be a legitimate value here?
                     this.setValue(data)
-                    const input = this.getInputLink(this.inputIndex)
-                    input.data = null;
                 }
             }
         }
@@ -231,7 +233,8 @@ export class ComfySliderNode extends ComfyWidgetNode<number> {
 
     static slotLayout: SlotLayout = {
         inputs: [
-            { name: "value", type: "number" }
+            { name: "value", type: "number" },
+            { name: "store", type: BuiltInSlotType.ACTION }
         ],
         outputs: [
             { name: "value", type: "number" },
@@ -250,6 +253,11 @@ export class ComfySliderNode extends ComfyWidgetNode<number> {
         super(name, 0)
     }
 
+    override onAction(action: any, param: any) {
+        if (action === "store" && typeof param === "number")
+            this.setValue(param)
+    }
+
     override setValue(value: any) {
         if (typeof value !== "number")
             return;
@@ -283,7 +291,8 @@ export class ComfyComboNode extends ComfyWidgetNode<string> {
 
     static slotLayout: SlotLayout = {
         inputs: [
-            { name: "value", type: "string" }
+            { name: "value", type: "string" },
+            { name: "store", type: BuiltInSlotType.ACTION }
         ],
         outputs: [
             { name: "value", type: "string" },
@@ -323,6 +332,11 @@ export class ComfyComboNode extends ComfyWidgetNode<string> {
         return true;
     }
 
+    override onAction(action: any, param: any) {
+        if (action === "store" && typeof param === "string")
+            this.setValue(param)
+    }
+
     override setValue(value: any) {
         if (typeof value !== "string" || this.properties.values.indexOf(value) === -1)
             return;
@@ -358,7 +372,8 @@ export class ComfyTextNode extends ComfyWidgetNode<string> {
 
     static slotLayout: SlotLayout = {
         inputs: [
-            { name: "value", type: "string" }
+            { name: "value", type: "string" },
+            { name: "store", type: BuiltInSlotType.ACTION }
         ],
         outputs: [
             { name: "value", type: "string" },
@@ -372,6 +387,11 @@ export class ComfyTextNode extends ComfyWidgetNode<string> {
         super(name, "")
     }
 
+    override onAction(action: any, param: any) {
+        if (action === "store")
+            this.setValue(param)
+    }
+
     override setValue(value: any) {
         super.setValue(`${value}`)
     }
@@ -428,15 +448,24 @@ export class ComfyGalleryNode extends ComfyWidgetNode<GradioFileData[]> {
     override outputIndex = null;
     override changedIndex = null;
 
+    modeWidget: IComboWidget;
+
     constructor(name?: string) {
         super(name, [])
+        this.modeWidget = this.addWidget("combo", "Mode", this.properties.updateMode, null, { property: "updateMode", values: ["replace", "append"] })
+    }
+
+    override onPropertyChanged(property: any, value: any) {
+        if (property === "updateMode") {
+            this.modeWidget.value = value;
+        }
     }
 
     override onExecute() {
         this.setOutputData(0, this.properties.index)
     }
 
-    override onAction(action: any) {
+    override onAction(action: any, param: any, options: { action_call?: string }) {
         if (action === "clear") {
             this.setValue([])
         }
@@ -539,3 +568,40 @@ LiteGraph.registerNodeType({
     desc: "Button that triggers an event when clicked",
     type: "ui/button"
 })
+
+export interface ComfyCheckboxProperties extends ComfyWidgetProperties {
+}
+
+export class ComfyCheckboxNode extends ComfyWidgetNode<boolean> {
+    override properties: ComfyCheckboxProperties = {
+        defaultValue: false,
+    }
+
+    static slotLayout: SlotLayout = {
+        outputs: [
+            { name: "value", type: "boolean" },
+            { name: "changed", type: BuiltInSlotType.EVENT },
+        ]
+    }
+
+    override svelteComponentType = CheckboxWidget;
+
+    override setValue(value: any) {
+        value = Boolean(value)
+        const changed = value != get(this.value);
+        super.setValue(Boolean(value))
+        if (changed)
+            this.triggerSlot(1)
+    }
+
+    constructor(name?: string) {
+        super(name, false)
+    }
+}
+
+LiteGraph.registerNodeType({
+    class: ComfyCheckboxNode,
+    title: "UI.Checkbox",
+    desc: "Checkbox that stores a boolean value",
+    type: "ui/checkbox"
+})
diff --git a/src/lib/widgets/CheckboxWidget.svelte b/src/lib/widgets/CheckboxWidget.svelte
new file mode 100644
index 0000000..7acb016
--- /dev/null
+++ b/src/lib/widgets/CheckboxWidget.svelte
@@ -0,0 +1,55 @@
+<script lang="ts">
+ import type { ComfyCheckboxNode } from "$lib/nodes/ComfyWidgetNodes";
+ import { type WidgetLayout } from "$lib/stores/layoutState";
+	import { Block } from "@gradio/atoms";
+ import { Checkbox } from "@gradio/form";
+ import { get, type Writable, writable } from "svelte/store";
+
+ export let widget: WidgetLayout | null = null;
+ let node: ComfyCheckboxNode | null = null;
+ let nodeValue: Writable<boolean> | null = null;
+ let attrsChanged: Writable<boolean> | null = null;
+
+ $: widget && setNodeValue(widget);
+
+ function setNodeValue(widget: WidgetLayout) {
+     if (widget) {
+         node = widget.node as ComfyCheckboxNode
+         nodeValue = node.value;
+         attrsChanged = widget.attrsChanged;
+     }
+ };
+</script>
+
+<div class="wrapper gradio-checkbox">
+    <div class="inner">
+        {#key $attrsChanged}
+            {#if node !== null}
+                <Block>
+                    <Checkbox disabled={widget.attrs.disabled} label={widget.attrs.title} bind:value={$nodeValue} />
+                </Block>
+            {/if}
+        {/key}
+    </div>
+</div>
+
+<style lang="scss">
+ .wrapper {
+     display: flex;
+     flex-direction: row;
+     align-items: flex-end;
+     height: 100%;
+
+     > .inner {
+         padding: 2px;
+         width: 100%;
+         display: flex;
+         flex-direction: row;
+         height: min-content;
+
+         :global(> label) {
+             height: 100%;
+         }
+     }
+ }
+</style>
diff --git a/src/lib/widgets/ComboWidget.svelte b/src/lib/widgets/ComboWidget.svelte
index 3efb7c4..68cb6c4 100644
--- a/src/lib/widgets/ComboWidget.svelte
+++ b/src/lib/widgets/ComboWidget.svelte
@@ -114,6 +114,11 @@
      }
  }
 
+ :global(.svelte-select) {
+     width: auto;
+     max-width: 30rem;
+ }
+
  :global(.svelte-select-list) {
      z-index: var(--layer-top) !important;
  }
diff --git a/src/lib/widgets/GalleryWidget.svelte b/src/lib/widgets/GalleryWidget.svelte
index e5b2c2c..5c06043 100644
--- a/src/lib/widgets/GalleryWidget.svelte
+++ b/src/lib/widgets/GalleryWidget.svelte
@@ -73,10 +73,13 @@
     {/if}
 </div>
 
-<style>
+<style lang="scss">
  .wrapper {
-     padding: 2px;
      width: 100%;
+
+     :global(> .block) {
+         border-radius: 0px !important;
+     }
  }
 
  .padding {
diff --git a/src/scss/ux.scss b/src/scss/ux.scss
index 472e0da..d15bb9a 100644
--- a/src/scss/ux.scss
+++ b/src/scss/ux.scss
@@ -419,6 +419,10 @@ div.gradio-row>.form{
     box-shadow: none !important;
 }
 
+.gradio-checkbox > .inner > .block {
+    background-color: var(--ae-input-bg-color) !important;
+}
+
 .wrapper.gradio-textbox textarea {
     overflow-y: scroll;
     box-sizing: border-box;