diff --git a/plot/cube/cube.view.tree b/plot/cube/cube.view.tree
index 093f9ed..0faa467 100644
--- a/plot/cube/cube.view.tree
+++ b/plot/cube/cube.view.tree
@@ -1,6 +1,6 @@
 $mpds_visavis_plot_cube $mol_view
 	plot_raw $mpds_visavis_plot_raw
-	json_cmp? null
+	multi_jsons? null
 	show_setup true
 	show_fixel? true
 	heatmap? false
@@ -42,8 +42,8 @@ $mpds_visavis_plot_cube $mol_view
 					layout <= layout *
 					subscribe_events <= subscribe_events null
 				<= Cmp_legend $mpds_visavis_plot_legend_cmp
-					first_cmp_label? <= first_cmp_label? \
-					second_cmp_label? <= second_cmp_label? \
+					labels <= cmp_labels /
+					colorset <= colorset
 				<= Side_right $mol_scroll
 					sub /
 						<= Heatmap_legend $mol_list
diff --git a/plot/cube/cube.view.ts b/plot/cube/cube.view.ts
index 8de9866..65b3b50 100644
--- a/plot/cube/cube.view.ts
+++ b/plot/cube/cube.view.ts
@@ -26,7 +26,7 @@ namespace $.$$ {
 		setup() {
 			return [
 				... this.show_fixel() ? [ this.Fixel() ] : [],
-				this.json_cmp() ? this.Diffrence_on() : this.Nonformers(),
+				this.multi_jsons() ? this.Diffrence_on() : this.Nonformers(),
 				... this.show_setup() ? [ this.X_order(), this.Y_order(), this.Z_order() ] : [],
 			]
 		}
@@ -35,7 +35,7 @@ namespace $.$$ {
 		plot_body() {
 			return [
 				this.Root(),
-				... this.json_cmp() ? [ this.Cmp_legend() ] : [],
+				... this.multi_jsons() ? [ this.Cmp_legend() ] : [],
 				... this.heatmap() ? [ this.Side_right() ] : [],
 			]
 		}
@@ -135,32 +135,38 @@ namespace $.$$ {
 		}
 
 		@ $mol_mem
-		data_cmp() {
-			if (!this.json_cmp() ) return null
+		multi_dataset(): any[] | null {
+			if( ! this.multi_jsons() ) return null
+
 			this.nonformers_checked( false )
-			this.first_cmp_label( this.json().answerto )
-			this.second_cmp_label( this.json_cmp().answerto )
-			return {
-				...this.scatter3d_common(),
-				text: this.json_cmp().payload.points.labels,
-				marker: this.marker( 1 ),
-				...this.convert_to_axes(
-					this.json_cmp().payload.points.x, 
-					this.json_cmp().payload.points.y, 
-					this.json_cmp().payload.points.z, 
-					this.x_sort() as Prop_name, 
-					this.y_sort() as Prop_name, 
-					this.z_sort() as Prop_name,
-				)
-			}
+
+			return this.multi_jsons().map( (json: any, index: number) => {
+				return {
+					...this.scatter3d_common(),
+					text: json.payload.points.labels,
+					marker: this.marker( index ),
+					...this.convert_to_axes(
+						json.payload.points.x, 
+						json.payload.points.y, 
+						json.payload.points.z, 
+						this.x_sort() as Prop_name, 
+						this.y_sort() as Prop_name, 
+						this.z_sort() as Prop_name,
+					)
+				}
+			} )
+		}
+
+		@ $mol_mem
+		cmp_labels() {
+			return this.multi_jsons() ? this.multi_jsons()!.map( (json: any) => json.answerto ) : []
 		}
 
 		@ $mol_mem
 		data_shown() {
 			return [
-				... this.nonformers_checked() ? [this.data_nonformers()] : [],
-				this.data(),
-				... this.json_cmp() ? [this.data_cmp()] : [],
+				... this.nonformers_checked() ? [ this.data_nonformers() ] : [],
+				... this.multi_dataset() ? this.multi_dataset()! : [ this.data() ],
 			]
 		}
 
diff --git a/plot/legend/cmp/cmp.view.css.ts b/plot/legend/cmp/cmp.view.css.ts
index 31abf47..f3dbec7 100644
--- a/plot/legend/cmp/cmp.view.css.ts
+++ b/plot/legend/cmp/cmp.view.css.ts
@@ -1,40 +1,34 @@
 namespace $.$$ {
 
-	const Cmp_label: $mol_style_properties = {
-		color: 'white',
-		padding: {
-			left: $mol_gap.space,
-			right: $mol_gap.space,
-		}
-	}
-
 	$mol_style_define( $mpds_visavis_plot_legend_cmp, {
 
+		lineHeight: '1',
+
 		position: 'absolute',
 		left: 0,
 		bottom: 0,
 		width: '100%',
-		gap: $mol_gap.block,
-		alignItems: 'center',
-		justifyContent: 'center',
 		padding: {
 			bottom: $mol_gap.space,
 		},
-		lineHeight: '1',
-
-		First_cmp_label: {
-			...Cmp_label,
-			background: {
-				color: '#3e3f95',
-			},
+		
+		gap: $mol_gap.block,
+		align: {
+			items: 'center',
 		},
+		justify: {
+			content: 'center',
+		}
 
-		Second_cmp_label: {
-			...Cmp_label,
-			background: {
-				color: '#c00',
-			},
-		},
+	} )
+
+	$mol_style_define( $mpds_visavis_plot_legend_cmp_label, {
+
+		color: 'white',
+		padding: {
+			left: $mol_gap.space,
+			right: $mol_gap.space,
+		}
 
 	} )
 
diff --git a/plot/legend/cmp/cmp.view.tree b/plot/legend/cmp/cmp.view.tree
index 4ab37df..aef3282 100644
--- a/plot/legend/cmp/cmp.view.tree
+++ b/plot/legend/cmp/cmp.view.tree
@@ -1,7 +1,15 @@
 $mpds_visavis_plot_legend_cmp $mol_view
 	sub /
-		<= First_cmp_label $mol_view
-			sub / <= first_cmp_label? \
+		<= Label*0 $mpds_visavis_plot_legend_cmp_label
+			label <= label* \
+			background <= background* \
 		\vs.
-		<= Second_cmp_label $mol_view
-			sub / <= second_cmp_label? \
+		<= Label*1
+	labels /
+	colorset /
+
+$mpds_visavis_plot_legend_cmp_label $mol_view
+	sub / <= label \
+	style *
+		^
+		background <= background \
diff --git a/plot/legend/cmp/cmp.view.ts b/plot/legend/cmp/cmp.view.ts
new file mode 100644
index 0000000..d16841a
--- /dev/null
+++ b/plot/legend/cmp/cmp.view.ts
@@ -0,0 +1,19 @@
+namespace $.$$ {
+	export class $mpds_visavis_plot_legend_cmp extends $.$mpds_visavis_plot_legend_cmp {
+
+		sub(): readonly any[] {
+			return this.labels().length == 2
+				? super.sub()
+				: this.labels().map( ( label, ind ) => this.Label( ind ) )
+		}
+		
+		label( index: number ): string {
+			return this.labels()[ index ] ?? ''
+		}
+
+		background( index: number ): string {
+			return this.colorset()[ index ] ?? ''
+		}
+		
+	}
+}
diff --git a/plot/matrix/matrix.view.tree b/plot/matrix/matrix.view.tree
index 6ac5916..a8a8311 100644
--- a/plot/matrix/matrix.view.tree
+++ b/plot/matrix/matrix.view.tree
@@ -1,6 +1,6 @@
 $mpds_visavis_plot_matrix $mol_view
 	plot_raw $mpds_visavis_plot_raw
-	json_cmp? null
+	multi_jsons? null
 	json_master null
 	show_setup true
 	size 0
@@ -43,8 +43,8 @@ $mpds_visavis_plot_matrix $mol_view
 				<= Root $mol_view
 					render <= draw null
 				<= Cmp_legend $mpds_visavis_plot_legend_cmp
-					first_cmp_label? <= first_cmp_label? \
-					second_cmp_label? <= second_cmp_label? \
+					labels <= cmp_labels /
+					colorset <= colorset
 				<= Side_right $mol_scroll
 					sub /
 						<= Heatmap_legend $mol_list
diff --git a/plot/matrix/matrix.view.ts b/plot/matrix/matrix.view.ts
index 315bebd..e2d9e34 100644
--- a/plot/matrix/matrix.view.ts
+++ b/plot/matrix/matrix.view.ts
@@ -49,7 +49,7 @@ namespace $.$$ {
 		setup() {
 			return [
 				... this.json().payload.fixel ? [ this.Fixel() ] : [],
-				this.json_cmp() ? this.Diffrence_on() : this.Nonformers(),
+				this.multi_jsons() ? this.Diffrence_on() : this.Nonformers(),
 				... this.show_setup() ? [ this.Order() ] : [],
 			]
 		}
@@ -58,7 +58,7 @@ namespace $.$$ {
 		plot_body() {
 			return [
 				this.Root(),
-				... this.json_cmp() ? [ this.Cmp_legend() ] : [],
+				... this.multi_jsons() ? [ this.Cmp_legend() ] : [],
 				... this.heatmap() ? [ this.Side_right() ] : [],
 			]
 		}
@@ -68,19 +68,28 @@ namespace $.$$ {
 			return $mpds_visavis_plot_matrix_json( this.plot_raw().json() as any )
 		}
 
+		@ $mol_mem
+		cmp_labels() {
+			return this.multi_jsons() ? this.multi_jsons()!.map( (json: any) => json.answerto ) : []
+		}
+
 		@ $mol_mem
 		json_master() {
-			if ( !this.json_cmp() ) return this.json()
-			
-			const json_master = JSON.parse(JSON.stringify( this.json() ));
-			this.json_cmp().payload.links.forEach( (item: any)=> {
-				item.cmp = 1;
-				json_master.payload.links.push(item);
-			});
+			if ( ! this.multi_jsons() ) return this.json()
+
+			const jsons = this.multi_jsons()!
 			
+			const json_master = JSON.parse( JSON.stringify( jsons[0] ) )
+
+			for (let i = 1; i < jsons.length; i++) {
+				const json = jsons[i]
+				json.payload.links.forEach( ( item: any ) => {
+					item.cmp = i
+					json_master.payload.links.push( item )
+				} )
+			}
+
 			this.nonformers_checked( false )
-			this.first_cmp_label( this.json().answerto )
-			this.second_cmp_label( this.json_cmp().answerto )
 
 			return $mpds_visavis_plot_matrix_json( json_master )
 		}
diff --git a/plot/plot.view.tree b/plot/plot.view.tree
index bcfa6fd..d6a23c3 100644
--- a/plot/plot.view.tree
+++ b/plot/plot.view.tree
@@ -7,6 +7,8 @@ $mpds_visavis_plot $mol_view
 	json null
 	json_cmp_request? null
 	json_cmp null
+	multi_requests? /
+	multi_jsons null
 	plot_raw null
 	show_setup false
 	notify? null
@@ -19,7 +21,7 @@ $mpds_visavis_plot $mol_view
 	plots *
 		matrix <= Matrix $mpds_visavis_plot_matrix
 			plot_raw <= plot_raw
-			json_cmp <= json_cmp
+			multi_jsons <= multi_jsons
 			show_setup <= show_setup
 			nonformers_checked? <=> nonformers_checked? false
 			fixel_checked? <=> matrix_fixel_checked? true
@@ -30,7 +32,7 @@ $mpds_visavis_plot $mol_view
 			matrix_click? <=> matrix_click? null
 		plot3d <= Cube $mpds_visavis_plot_cube
 			plot_raw <= plot_raw
-			json_cmp <= json_cmp
+			multi_jsons <= multi_jsons
 			show_setup <= show_setup
 			show_fixel? <= show_fixel? true
 			nonformers_checked? <=> nonformers_checked?
diff --git a/plot/plot.view.ts b/plot/plot.view.ts
index e7725f1..732da19 100644
--- a/plot/plot.view.ts
+++ b/plot/plot.view.ts
@@ -24,6 +24,13 @@ namespace $.$$ {
 			return $mpds_visavis_plot.fetch_plot_json( this.json_cmp_request() )
 		}
 
+		@ $mol_mem
+		multi_jsons() {
+			return this.multi_requests().length > 0 
+				? this.multi_requests().map( req => $mpds_visavis_plot.fetch_plot_json( req ) )
+				: this.json_cmp() ? [ this.json(), this.json_cmp() ] : null
+		}
+
 		@ $mol_mem
 		json_cmp_request( next?: string | null ) {
 			if ( next === null && $mol_wire_probe( ()=> this.json_cmp_request() ) === null ) {