diff --git a/classes/deck/deck_node.gd b/classes/deck/deck_node.gd
index 108d210..63b4525 100644
--- a/classes/deck/deck_node.gd
+++ b/classes/deck/deck_node.gd
@@ -5,18 +5,39 @@ var input_ports: Array[Port]
 var output_ports: Array[Port]
 var outgoing_connections: Dictionary
 
+var ports: Array[Port]
+
 var _belonging_to: Deck
 var _id: String
 
+enum PortType{
+	INPUT, ## Input port type (slot on the left).
+	OUTPUT, ## Output port type (slot on the right).
+	VIRTUAL, ## Virtual port type (no slot on left [i]or[/i] right).
+}
+
 
 func add_input_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
-	var port := Port.new(type, label, descriptor)
-	input_ports.append(port)
+	var port := Port.new(type, label, ports.size(), PortType.INPUT, get_input_ports().size(), descriptor)
+	ports.append(port)
 
 
 func add_output_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
-	var port := Port.new(type, label, descriptor)
-	output_ports.append(port)
+	var port := Port.new(type, label, ports.size(), PortType.OUTPUT, get_output_ports().size(), descriptor)
+	ports.append(port)
+
+
+func add_virtual_port(type: Deck.Types, label: String, descriptor: String = "") -> void:
+	var port := Port.new(type, label, ports.size(), PortType.VIRTUAL, get_virtual_ports().size(), descriptor)
+	ports.append(port)
+
+
+func send_from_output_port(output_port: int, data: DeckType, extra_data: Array = []) -> void:
+	var global_port := get_global_port_idx_from_output(output_port)
+	if global_port == -1:
+		return
+
+	send(global_port, data, extra_data)
 
 
 func send(from_port: int, data: DeckType, extra_data: Array = []) -> void:
@@ -35,6 +56,14 @@ func _receive(to_port: int, data: DeckType, extra_data: Array = []) -> void:
 	pass
 
 
+func add_outgoing_connection_to_port(output_port: int, to_node: String, to_input_port: int) -> void:
+	add_outgoing_connection(
+		get_global_port_idx_from_output(output_port),
+		to_node,
+		get_node(to_node).get_global_port_idx_from_input(to_input_port)
+		)
+
+
 func add_outgoing_connection(from_port: int, to_node: String, to_port: int) -> void:
 	var port_connections: Array = outgoing_connections.get(from_port, [])
 	port_connections.append({to_node: to_port})
@@ -56,3 +85,57 @@ func remove_outgoing_connection(from_port: int, connection_hash: int) -> void:
 
 	port_connections.remove_at(to_remove)
 	outgoing_connections[from_port] = port_connections
+
+
+func remove_outgoing_connection_from_port(output_port: int, connection_hash: int) -> void:
+	remove_outgoing_connection(get_global_port_idx_from_output(output_port), connection_hash)
+
+
+func get_input_ports() -> Array[Port]:
+	return ports.filter(
+		func(port: Port) -> bool:
+			return port.port_type == PortType.INPUT
+	)
+
+
+func get_output_ports() -> Array[Port]:
+	return ports.filter(
+		func(port: Port) -> bool:
+			return port.port_type == PortType.OUTPUT
+	)
+
+
+func get_virtual_ports() -> Array[Port]:
+	return ports.filter(
+		func(port: Port) -> bool:
+			return port.port_type == PortType.VIRTUAL
+	)
+
+
+func get_global_port_idx_from_input(idx: int) -> int:
+	if get_input_ports().size() > idx:
+		return get_input_ports()[idx].index
+	else:
+		return -1
+
+
+func get_global_port_idx_from_output(idx: int) -> int:
+	if get_output_ports().size() > idx:
+		return get_output_ports()[idx].index
+	else:
+		return -1
+
+
+func get_global_port_idx_from_virtual(idx: int) -> int:
+	if get_virtual_ports().size() > idx:
+		return get_virtual_ports()[idx].index
+	else:
+		return -1
+
+
+func get_all_ports() -> Array[Port]:
+	return ports
+
+
+func get_node(uuid: String) -> DeckNode:
+	return _belonging_to.get_node(uuid)
diff --git a/classes/deck/nodes/print.gd b/classes/deck/nodes/print.gd
index 3ae7733..9bd45d5 100644
--- a/classes/deck/nodes/print.gd
+++ b/classes/deck/nodes/print.gd
@@ -14,6 +14,12 @@ func _init() -> void:
 		"button"
 	)
 
+	add_output_port(
+		Deck.Types.BOOL,
+		"On Trigger",
+		"label"
+	)
+
 	name = "Print"
 
 
diff --git a/classes/deck/port.gd b/classes/deck/port.gd
index 055cf04..6ec1db3 100644
--- a/classes/deck/port.gd
+++ b/classes/deck/port.gd
@@ -5,13 +5,25 @@ var label: String
 var descriptor: String
 var value_callback: Callable
 
+var port_type: DeckNode.PortType
+var index_of_type: int
+var index: int
+
 
 func _init(
 		p_type: Deck.Types,
 		p_label: String,
+		p_index: int,
+		p_port_type: DeckNode.PortType,
+		p_index_of_type: int,
 		p_descriptor: String = "",
-		p_value_callback: Callable = Callable()) -> void:
+#		p_value_callback: Callable = Callable(),
+		) -> void:
 	type = p_type
 	label = p_label
 	descriptor = p_descriptor
-	value_callback = p_value_callback
+#	value_callback = p_value_callback
+
+	port_type = p_port_type
+	index_of_type = p_index_of_type
+	index = p_index