Does clockwork wrench do something? If no i think it can be useful to use it to change building's source/target
- Shift+lmb to select object(s) (if you add orange hitboxes, selected machines will have it)
- Shift+rmb to deselect object(s)
- Shift+rmb on ground to deselect all
- Ctrl +lmb/rmb to set source/target
- "G" will also work
I think it will make it allot more useful (if it already does something, you can add selection wand or something)