Something like that which holds FlxBasic, FlxObject members, position and total size so I could group them and set their position as a group with ease.
I don't need other alternative class in another library. I can write a simple class like that. But I just ask so as to not waste my time writing one.
There's nothing like that for FlxBasic or FlxObject, just for FlxSprite (which is one further down the inheritance chain). There are two options:
FlxSpriteGroup: part of core flixel, basically a FlxSprite with a FlxGroup that can hold additional sprites and manipulates the properties of those sprites as well - this means stuff like rotation and scaling works on each individual sprite, as opposed to the group acting as a single rotated / scaled sprite.FlxNestedSprite: part of flixel-addons (and perhaps not as well maintained as a result), pretty much an imitation of a DisplayObjectContainer.