This tool merges grouped meshes in a level together with the unreal merge capabilities in bulk.

The merging process saves data on the original meshes when merging a mesh so that the merged mesh can be reverted and adjusted before merging again.

Warning: The groups are set by name in the first item in the actor's tags; if anything else is using this tag, they will not be compatible (unless you can adjust where the tags are written in the blueprint)