diff --git a/src/SocialShapeUtil.tsx b/src/SocialShapeUtil.tsx
index 9143e41..ad23f22 100644
--- a/src/SocialShapeUtil.tsx
+++ b/src/SocialShapeUtil.tsx
@@ -5,12 +5,13 @@ import {
 	Rectangle2d,
 	TLBaseShape,
 	TLOnResizeHandler,
+	TLShapeId,
 	resizeBox,
 	toDomPrecision,
 } from 'tldraw'
 import { getUserId } from './storeUtils'
 
-export type ValueType = "scalar" | "boolean" | null
+export type ValueType = "SCALAR" | "BOOLEAN" | "NONE"
 
 export type ISocialShape = TLBaseShape<
 	"social",
@@ -21,15 +22,17 @@ export type ISocialShape = TLBaseShape<
 		selector: string
 		valueType: ValueType
 		values: Record<string, any>
+		value: any
+		syntaxError: boolean
 	}
 >
 
 export class SocialShapeUtil extends BaseBoxShapeUtil<ISocialShape> {
 	static override type = 'social' as const
-	override canBind = () => false
+	override canBind = () => true
 	override canEdit = () => false
 	override getDefaultProps(): ISocialShape['props'] {
-		return { w: 160 * 2, h: 90 * 2, text: '', selector: '', valueType: null, values: {} }
+		return { w: 160 * 2, h: 90 * 2, text: '', selector: '', valueType: "NONE", values: {}, value: null, syntaxError: false }
 	}
 	override onResize: TLOnResizeHandler<ISocialShape> = (shape, info) => {
 		return resizeBox(shape, info)
@@ -43,11 +46,10 @@ export class SocialShapeUtil extends BaseBoxShapeUtil<ISocialShape> {
 	}
 
 	indicator(shape: ISocialShape) {
-		const bounds = this.editor.getShapeGeometry(shape).bounds
 		return (
 			<rect
-				width={toDomPrecision(bounds.width)}
-				height={toDomPrecision(bounds.height)}
+				width={shape.props.w}
+				height={shape.props.h}
 				rx={4}
 			/>
 		)
@@ -56,19 +58,82 @@ export class SocialShapeUtil extends BaseBoxShapeUtil<ISocialShape> {
 	override component(shape: ISocialShape) {
 		const currentUser = getUserId(this.editor)
 
-		const handleOnChange = (newValue: any) => {
+		const defaultValues = {
+			BOOLEAN: false,
+			SCALAR: 0,
+			DEFAULT: null
+		}
+
+		const handleOnChange = (newValue: boolean | number) => {
 			this.updateProps(shape, { values: { ...shape.props.values, [currentUser]: newValue } })
-			console.log(shape.props.values)
+			this.updateValue(shape.id)
+		}
+
+		const handleTextChange = (text: string) => {
+			let valueType: ValueType = "NONE"
+			const selector = text.match(/@([a-zA-Z]+)/)?.[1] || ''
+
+			if (text.includes('SCALAR')) {
+				valueType = 'SCALAR'
+			} else if (text.includes('BOOLEAN')) {
+				valueType = 'BOOLEAN'
+			}
+
+			if (valueType !== shape.props.valueType) {
+				this.updateProps(shape, { text, valueType, selector, values: {} })
+			} else {
+				this.updateProps(shape, { text, selector })
+			}
+			this.updateValue(shape.id)
 		}
 
 		return (
-			<HTMLContainer style={{ padding: 4, borderRadius: 4, border: '1px solid #ccc' }} onPointerDown={(e) => e.stopPropagation()}>
-				<textarea style={{ width: '100%', height: '50%', border: 'none', outline: 'none', resize: 'none', pointerEvents: 'all' }} value={shape.props.text} onChange={(e) => this.updateProps(shape, { text: e.target.value })} />
-				<ValueInterface type='boolean' value={shape.props.values[currentUser] ?? false} values={shape.props.values} onChange={handleOnChange} />
+			<HTMLContainer style={{ padding: 4, borderRadius: 4, border: '1px solid #ccc', outline: shape.props.syntaxError ? '2px solid orange' : 'none' }} onPointerDown={(e) => e.stopPropagation()}>
+				<textarea style={{ width: '100%', height: '50%', border: 'none', outline: 'none', resize: 'none', pointerEvents: 'all' }} value={shape.props.text} onChange={(e) => handleTextChange(e.target.value)} />
+				<ValueInterface type={shape.props.valueType ?? null} value={shape.props.values[currentUser] ?? defaultValues[shape.props.valueType ?? 'DEFAULT']} values={shape.props.values} onChange={handleOnChange} />
 			</HTMLContainer>
 		)
 	}
 
+	private updateValue(shapeId: TLShapeId) {
+		const shape = this.editor.getShape(shapeId) as ISocialShape
+		const valueType = shape.props.valueType
+		console.log("SHAPE", shape)
+		const vals = Array.from(Object.values(shape.props.values))
+		console.log("VALS", vals)
+		// const functionBody = `return (${shape.props.text.replace(valueType, vals)})`
+		const functionBody = `return ${shape.props.text.replace(valueType, 'VALUES')};`
+
+		console.log("FUNCTION BODY", functionBody)
+		const sum = (vals: number[] | boolean[]) => {
+			if (valueType === 'SCALAR') {
+				return (vals as number[]).reduce((acc, val) => acc + val, 0)
+			}
+			if (valueType === 'BOOLEAN') {
+				return vals.filter(Boolean).length;
+			}
+		}
+		const average = (vals: number[] | boolean[]) => {
+			if (valueType === 'SCALAR') {
+				return (vals as number[]).reduce((acc, val) => acc + val, 0) / vals.length
+			}
+			if (valueType === 'BOOLEAN') {
+				return vals.filter(Boolean).length;
+			}
+		}
+
+		try {
+			const func = new Function('sum', 'average', 'VALUES', functionBody)
+			const result = func(sum, average, vals)
+			console.log("VALUE", result)
+			this.updateProps(shape, { value: result, syntaxError: false })
+		} catch (e) {
+			console.log("ERROR", e)
+			this.updateProps(shape, { syntaxError: true })
+		}
+	}
+
+
 	private updateProps(shape: ISocialShape, props: Partial<ISocialShape['props']>) {
 		this.editor.updateShape<ISocialShape>({
 			id: shape.id,
@@ -83,19 +148,45 @@ export class SocialShapeUtil extends BaseBoxShapeUtil<ISocialShape> {
 
 function ValueInterface({ type, value, values, onChange }: { type: ValueType; value: any; values: Record<string, any>; onChange: (value: any) => void }) {
 	switch (type) {
-		case 'boolean':
+		case 'BOOLEAN':
 			return <>
 				<div style={{ display: 'flex', flexDirection: 'row', alignItems: 'center', gap: '4px' }}>
 					<input style={{ pointerEvents: 'all', width: '20px', height: '20px', margin: 0 }} type="checkbox" value={value} onChange={(e) => onChange(e.target.checked)} />
 					<div style={{ width: '1px', height: '20px', backgroundColor: 'grey' }} />
 					{Object.values(values).map((bool, i) => (
-						<div key={`boolean-${i}`} style={{ backgroundColor: bool ? 'blue' : 'white', width: '20px', height: '20px', border: '1px solid grey', borderRadius: 2 }} />
+						<div key={`boolean-${i}`} style={{ backgroundColor: bool ? 'blue' : 'white', width: '20px', height: '20px', border: '1px solid lightgrey', borderRadius: 2 }} />
 					))}
 				</div>
 			</>
-		case 'scalar':
-			return <div>Slider</div>
+		case 'SCALAR':
+			return (
+				<div style={{ display: 'flex', flexDirection: 'row', alignItems: 'center', gap: '4px' }}>
+					<input
+						type="range"
+						min="0"
+						max="1"
+						step="0.01"
+						value={value ?? 0}
+						onChange={(e) => onChange(parseFloat(e.target.value))}
+						style={{ width: '100px', pointerEvents: 'all' }}
+					/>
+					<span style={{ fontFamily: 'monospace' }}>{(value ?? 0).toFixed(2)}</span>
+					<div style={{ width: '1px', height: '20px', backgroundColor: 'grey' }} />
+					{Object.values(values).map((val, i) => (
+						<div
+							key={`scalar-${i}`}
+							style={{
+								backgroundColor: `rgba(0, 0, 255, ${val ?? 0})`,
+								width: '20px',
+								height: '20px',
+								border: '1px solid lightgrey',
+								borderRadius: 2
+							}}
+						/>
+					))}
+				</div>
+			);
 		default:
-			return <div>No Interface...</div>
+			return <div style={{ marginTop: 10, textAlign: 'center' }}>No Interface...</div>
 	}
 }
\ No newline at end of file