Workspace groups

Abililty to create groups for Workspaces, with Fabric we have lot of projects moving to Workspaces. It'd would be great to create Folders/Groups for Workspaces like

1. Project1
   1. Env-Dev
      1. Workspace1
      2. Workspace2
   2. Env-Prod
2. Project2

Or Tagging workspaces and ability to browse through such Tags will also be better than having a single long list of workspaces in left pane