diff --git a/frontend/src/lib/components/apps/components/buttons/AppButton.svelte b/frontend/src/lib/components/apps/components/buttons/AppButton.svelte
index 155446e0e5..f2ef6f2391 100644
--- a/frontend/src/lib/components/apps/components/buttons/AppButton.svelte
+++ b/frontend/src/lib/components/apps/components/buttons/AppButton.svelte
@@ -27,6 +27,7 @@
 	let color: ButtonType.Color
 	let size: ButtonType.Size
 	let runnableComponent: RunnableComponent
+	let disabled = false
 
 	let isLoading: boolean = false
 	let ownClick: boolean = false
@@ -55,6 +56,7 @@
 <InputValue {id} input={configuration.label} bind:value={labelValue} />
 <InputValue {id} input={configuration.color} bind:value={color} />
 <InputValue {id} input={configuration.size} bind:value={size} />
+<InputValue {id} input={configuration.disabled} bind:value={disabled} />
 
 <RunnableWrapper
 	flexWrap
@@ -66,6 +68,7 @@
 >
 	<AlignWrapper {noWFull} {horizontalAlignment} {verticalAlignment}>
 		<Button
+			{disabled}
 			on:pointerdown={(e) => {
 				e?.stopPropagation()
 				window.dispatchEvent(new Event('pointerup'))
diff --git a/frontend/src/lib/components/apps/components/helpers/InputValue.svelte b/frontend/src/lib/components/apps/components/helpers/InputValue.svelte
index 7511e7b0f4..f6a98f392f 100644
--- a/frontend/src/lib/components/apps/components/helpers/InputValue.svelte
+++ b/frontend/src/lib/components/apps/components/helpers/InputValue.svelte
@@ -1,7 +1,7 @@
 <script lang="ts">
 	import { isCodeInjection } from '$lib/components/flows/utils'
 	import { createEventDispatcher, getContext, onMount } from 'svelte'
-	import type { AppInput } from '../../inputType'
+	import type { AppInput, EvalAppInput } from '../../inputType'
 	import type { AppEditorContext } from '../../types'
 	import { accessPropertyByPath } from '../../utils'
 
@@ -16,7 +16,8 @@
 
 	$: state = $worldStore?.state
 	$: input && $worldStore && row && handleConnection()
-	$: input && $state && input.type == 'template' && (value = getValue(input))
+	$: input && input.type == 'template' && $state && (value = getValue(input))
+	$: input && input.type == 'eval' && $state && (value = evalExpr(input))
 
 	function handleConnection() {
 		if (input.type === 'connected') {
@@ -25,11 +26,21 @@
 			setTimeout(() => (value = row[input['column']]), 0)
 		} else if (input.type === 'static' || input.type == 'template') {
 			setTimeout(() => (value = getValue(input)), 0)
+		} else if (input.type == 'eval') {
+			setTimeout(() => ((value = evalExpr(input as EvalAppInput)), 0))
 		} else {
 			setTimeout(() => (value = undefined), 0)
 		}
 	}
 
+	function evalExpr(input: EvalAppInput) {
+		try {
+			return eval_like(input.expr, computeGlobalContext())
+		} catch (e) {
+			return e.message
+		}
+	}
+
 	function computeGlobalContext() {
 		return Object.fromEntries(
 			Object.entries($worldStore?.outputsById ?? {})
diff --git a/frontend/src/lib/components/apps/editor/componentsPanel/data.ts b/frontend/src/lib/components/apps/editor/componentsPanel/data.ts
index e13361863f..3d52fbb3b4 100644
--- a/frontend/src/lib/components/apps/editor/componentsPanel/data.ts
+++ b/frontend/src/lib/components/apps/editor/componentsPanel/data.ts
@@ -171,6 +171,11 @@ const buttons: ComponentSet = {
 					onlyStatic: true,
 					optionValuesKey: 'buttonSizeOptions',
 					value: 'xs'
+				},
+				disabled: {
+					fieldType: 'boolean',
+					type: 'eval',
+					expr: 'false'
 				}
 			},
 
diff --git a/frontend/src/lib/components/apps/editor/settingsPanel/ComponentPanel.svelte b/frontend/src/lib/components/apps/editor/settingsPanel/ComponentPanel.svelte
index 0f6c009631..aa95861baf 100644
--- a/frontend/src/lib/components/apps/editor/settingsPanel/ComponentPanel.svelte
+++ b/frontend/src/lib/components/apps/editor/settingsPanel/ComponentPanel.svelte
@@ -10,7 +10,7 @@
 	import ConnectedInputEditor from './inputEditor/ConnectedInputEditor.svelte'
 	import Badge from '$lib/components/common/badge/Badge.svelte'
 	import { capitalize, classNames } from '$lib/utils'
-	import { fieldTypeToTsType } from '../../utils'
+	import { buildExtraLib, fieldTypeToTsType } from '../../utils'
 	import Recompute from './Recompute.svelte'
 	import Tooltip from '$lib/components/Tooltip.svelte'
 	import ComponentInputTypeEditor from './ComponentInputTypeEditor.svelte'
@@ -70,23 +70,9 @@
 		}
 	}
 
-	export function buildExtraLib(components: Record<string, Record<string, Output<any>>>): string {
-		return Object.entries(components)
-			.filter(([k, v]) => k != component?.id)
-			.map(([k, v]) => [k, Object.fromEntries(Object.entries(v).map(([k, v]) => [k, v.peak()]))])
-			.map(
-				([k, v]) => `
-
-declare const ${k} = ${JSON.stringify(v)};
-
-`
-			)
-			.join('\n')
-	}
-
 	$: extraLib =
 		component?.componentInput?.type === 'template' && $worldStore
-			? buildExtraLib($worldStore?.outputsById ?? {})
+			? buildExtraLib($worldStore?.outputsById ?? {}, component?.id)
 			: undefined
 </script>
 
@@ -150,6 +136,7 @@ declare const ${k} = ${JSON.stringify(v)};
 							</svelte:fragment>
 
 							<InputsSpecsEditor
+								id={component.id}
 								shouldCapitalize={false}
 								bind:inputSpecs={component.componentInput.fields}
 								userInputEnabled={component.type !== 'buttoncomponent'}
@@ -163,7 +150,11 @@ declare const ${k} = ${JSON.stringify(v)};
 
 		{#if Object.values(component.configuration).length > 0}
 			<PanelSection title={`Configuration (${Object.values(component.configuration).length})`}>
-				<InputsSpecsEditor bind:inputSpecs={component.configuration} userInputEnabled={false} />
+				<InputsSpecsEditor
+					id={component.id}
+					bind:inputSpecs={component.configuration}
+					userInputEnabled={false}
+				/>
 			</PanelSection>
 		{/if}
 
diff --git a/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecEditor.svelte b/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecEditor.svelte
index 7429400346..5cf709d88f 100644
--- a/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecEditor.svelte
+++ b/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecEditor.svelte
@@ -2,15 +2,23 @@
 	import Toggle from '$lib/components/Toggle.svelte'
 	import type {
 		ConnectedAppInput,
+		EvalAppInput,
 		RowAppInput,
 		StaticAppInput,
 		UserAppInput
 	} from '../../inputType'
 	import ConnectedInputEditor from './inputEditor/ConnectedInputEditor.svelte'
+	import EvalInputEditor from './inputEditor/EvalInputEditor.svelte'
 	import RowInputEditor from './inputEditor/RowInputEditor.svelte'
 	import StaticInputEditor from './inputEditor/StaticInputEditor.svelte'
 
-	export let componentInput: StaticAppInput | ConnectedAppInput | UserAppInput | RowAppInput
+	export let id: string
+	export let componentInput:
+		| StaticAppInput
+		| ConnectedAppInput
+		| UserAppInput
+		| RowAppInput
+		| EvalAppInput
 </script>
 
 {#if componentInput.type === 'connected'}
@@ -19,6 +27,8 @@
 	<RowInputEditor bind:componentInput />
 {:else if componentInput.type === 'static'}
 	<StaticInputEditor bind:componentInput />
+{:else if componentInput.type === 'eval'}
+	<EvalInputEditor {id} bind:componentInput />
 {:else if componentInput.type === 'user'}
 	<span class="text-2xs italic text-gray-6f00">Field's value is set by the user</span>
 {/if}
diff --git a/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecsEditor.svelte b/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecsEditor.svelte
index 20b55cd45c..e138bd8fd5 100644
--- a/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecsEditor.svelte
+++ b/frontend/src/lib/components/apps/editor/settingsPanel/InputsSpecsEditor.svelte
@@ -9,9 +9,9 @@
 	import Tooltip from '$lib/components/Tooltip.svelte'
 	import Popover from '$lib/components/Popover.svelte'
 
+	export let id: string
 	export let inputSpecs: BaseAppComponent['configuration']
 	export let userInputEnabled: boolean = true
-	export let staticOnly: boolean = false
 	export let shouldCapitalize: boolean = true
 	export let rowColumns = false
 
@@ -42,7 +42,7 @@
 								: capitalize(fieldTypeToTsType(input.fieldType))}
 						</Badge>
 
-						{#if !inputSpecs[inputSpecKey].onlyStatic}
+						{#if !inputSpecs[inputSpecKey].onlyStatic && inputSpecs[inputSpecKey].type != 'eval'}
 							<ToggleButtonGroup
 								bind:selected={inputSpecs[inputSpecKey].type}
 								on:selected={(e) => {
@@ -72,7 +72,6 @@
 											value="row"
 											startIcon={{ icon: faTableCells }}
 											size="xs"
-											disabled={staticOnly}
 										>
 											<Tooltip>
 												Use the column name to have the value of the cell be passed to the action
@@ -89,7 +88,6 @@
 											startIcon={{ icon: faUser }}
 											size="xs"
 											iconOnly
-											disabled={staticOnly}
 										/>
 										<svelte:fragment slot="text">User Input</svelte:fragment>
 									</Popover>
@@ -101,7 +99,6 @@
 										startIcon={{ icon: faArrowRight }}
 										size="xs"
 										iconOnly
-										disabled={staticOnly}
 									/>
 									<svelte:fragment slot="text">Connect</svelte:fragment>
 								</Popover>
@@ -110,7 +107,7 @@
 					</div>
 				</div>
 
-				<InputsSpecEditor bind:componentInput={inputSpecs[inputSpecKey]} />
+				<InputsSpecEditor {id} bind:componentInput={inputSpecs[inputSpecKey]} />
 			</div>
 		{/each}
 	</div>
diff --git a/frontend/src/lib/components/apps/editor/settingsPanel/inputEditor/EvalInputEditor.svelte b/frontend/src/lib/components/apps/editor/settingsPanel/inputEditor/EvalInputEditor.svelte
new file mode 100644
index 0000000000..96df8de6b2
--- /dev/null
+++ b/frontend/src/lib/components/apps/editor/settingsPanel/inputEditor/EvalInputEditor.svelte
@@ -0,0 +1,32 @@
+<script lang="ts">
+	import type { EvalAppInput } from '../../../inputType'
+
+	import { getContext } from 'svelte'
+	import type { AppEditorContext } from '$lib/components/apps/types'
+	import SimpleEditor from '$lib/components/SimpleEditor.svelte'
+	import { buildExtraLib } from '$lib/components/apps/utils'
+
+	export let componentInput: EvalAppInput | undefined
+	export let id: string
+
+	const { onchange, worldStore } = getContext<AppEditorContext>('AppEditorContext')
+
+	$: componentInput && onchange?.()
+
+	$: extraLib =
+		componentInput?.expr && $worldStore
+			? buildExtraLib($worldStore?.outputsById ?? {}, id)
+			: undefined
+</script>
+
+{#if componentInput?.type === 'eval'}
+	<div class="border border-gray-300 ">
+		<SimpleEditor
+			lang="javascript"
+			bind:code={componentInput.expr}
+			shouldBindKey={false}
+			{extraLib}
+			autoHeight
+		/>
+	</div>
+{/if}
diff --git a/frontend/src/lib/components/apps/inputType.ts b/frontend/src/lib/components/apps/inputType.ts
index aa69b43806..8aa4fcdaf1 100644
--- a/frontend/src/lib/components/apps/inputType.ts
+++ b/frontend/src/lib/components/apps/inputType.ts
@@ -35,6 +35,13 @@ export type UserInput<U> = {
 }
 
 
+
+export type EvalInput = {
+	type: 'eval'
+	expr: string
+}
+
+
 export type RowInput = {
 	type: 'row'
 	column: string
@@ -79,6 +86,7 @@ type AppInputSpec<T extends InputType, U, V extends InputType = never> = (
 	| ConnectedInput
 	| UserInput<U>
 	| RowInput
+	| EvalInput
 	| ResultInput
 	| TemplateInput
 ) &
@@ -125,5 +133,6 @@ export type StaticAppInput = Extract<AppInput, { type: 'static' }>
 export type ConnectedAppInput = Extract<AppInput, { type: 'connected' }>
 export type UserAppInput = Extract<AppInput, { type: 'user' }>
 export type ResultAppInput = Extract<AppInput, { type: 'runnable' }>
+export type EvalAppInput = Extract<AppInput, { type: 'eval' }>
 
 export type AppInputs = Record<string, AppInput>
diff --git a/frontend/src/lib/components/apps/types.ts b/frontend/src/lib/components/apps/types.ts
index 31c55af594..c26ece1ff8 100644
--- a/frontend/src/lib/components/apps/types.ts
+++ b/frontend/src/lib/components/apps/types.ts
@@ -6,6 +6,7 @@ import type {
 	AppInput,
 	ConnectedAppInput,
 	ConnectedInput,
+	EvalAppInput,
 	RowAppInput,
 	StaticAppInput,
 	UserAppInput
@@ -58,8 +59,9 @@ export type Aligned = {
 export interface BaseAppComponent extends Partial<Aligned> {
 	id: ComponentID
 	componentInput: AppInput | undefined
-	configuration: Record<string, (StaticAppInput | ConnectedAppInput | UserAppInput | RowAppInput) & {
+	configuration: Record<string, (StaticAppInput | ConnectedAppInput | UserAppInput | RowAppInput | EvalAppInput) & {
 		onlyStatic?: boolean,
+		evaluatedValue?: boolean,
 		tooltip?: string
 	}>
 	card: boolean | undefined
diff --git a/frontend/src/lib/components/apps/utils.ts b/frontend/src/lib/components/apps/utils.ts
index 26610e4943..59956c34b4 100644
--- a/frontend/src/lib/components/apps/utils.ts
+++ b/frontend/src/lib/components/apps/utils.ts
@@ -24,6 +24,7 @@ import {
 	SlidersHorizontal
 } from 'lucide-svelte'
 import type { AppInput, InputType, ResultAppInput, StaticAppInput } from './inputType'
+import type { Output } from './rx'
 import type { App, AppComponent } from './types'
 
 export async function loadSchema(
@@ -244,4 +245,18 @@ export function toStatic(app: App, staticExporter: Record<string, () => any>, su
 		}
 	})
 	return { app: newApp, summary }
+}
+
+export function buildExtraLib(components: Record<string, Record<string, Output<any>>>, idToExclude: string): string {
+	return Object.entries(components)
+		.filter(([k, v]) => k != idToExclude)
+		.map(([k, v]) => [k, Object.fromEntries(Object.entries(v).map(([k, v]) => [k, v.peak()]))])
+		.map(
+			([k, v]) => `
+
+declare const ${k} = ${JSON.stringify(v)};
+
+`
+		)
+		.join('\n')
 }
\ No newline at end of file