4.5
I want to discard unused blocks from Gridmap so I’m wondering if there’s a way to identify the blocks, from the bottom list, that are / aren’t being used.
By discard I meant to re-import only required meshes from Blender and re-update them to the Gridmap library.
***This discard method (re-exporting without ticking “Merge with Existing”) will restart Gridmap clean so you’d have to re-do all the placement again.
Thanks.
Nevermind. There’s a picker tool next to the paint brush icon 
OK so I realized my method of re-exporting MeshLibrary without “Merge with Existing” will restart Gridmap anew and removes all the mesh placements that I’ve done. I was assuming as long as I have the same mesh names they would be left in-placed, but I was wrong.
For example, I have this in MeshLibrary: Mesh_A1, Mesh_A2, Mesh_B1
I want to get rid of Mesh_B1 so I re-export MeshLibrary with just Mesh_A1, Mesh_A2 without “Merge with Existing” ticked. It will successfully do that but now I have to re-do the placement of Mesh_A1 and Mesh_A2 all over again.
