More work on Edit Frame

app/Classes/Frame.php

@@ -61,6 +61,7 @@ abstract class Frame
 	const FRAMETYPE_ACTION = 'a';
 	const FRAMETYPE_LOGIN = 'l';
 	const FRAMETYPE_TERMINATE = 't';
+	const FRAMETYPE_EXTERNAL = 'x';
 
 	// Fields that are editable
 	// @todo This needs rework.
@@ -161,6 +162,11 @@ abstract class Frame
 		return $this->po->char($x,$y);
 	}
 
+	public function content(): string
+	{
+		return $this->fo->content;
+	}
+
 	/**
 	 * Return fields within the frame.
 	 */