Dia - Feature Request - Layers - Sub-Layers and Layer Groupings

Hi Dia Devs - absolutely love this platform!

I am in need of the ability to add sub-layers (for example the parent layer would be ‘Networking’ and I would have sub-layers that I can show/hide named ‘Ethernet’ and ‘Fibre Optic’) and group layers together (for example if I want to show/hide devices that are on the same or separate VLAN).

Are these features someone is willing to bring online?

Thanks in advance!