Searching for asset combine/grouping tool (not for inspector organisatzion)

Im searching for a tool (addon) that works like the layer system, kind of like putting assets with certain roles in a certain group where they can only affect and manipulate other assets within that same layer/group.

The reason i need this is because i need more than 30 layers.

Note: A addon that adds more layers *30+ would ofcourse be a solution too.

YOO 11 views, but actually can anyone help? A no is appreciated too, im just looking for an answer now lol.