Hi Dodgy, here's another way you can do it, put the attached script file in the MoI appdata startup folder. On Windows it's at %appdata%\Moi\startup , on Mac it's in ~/Library/Application Support/Moi/startup .

That will insert a "Snap to locked objects" checkbox on the bottom command bar and you can either click it or you can use the keyboard shortcut to switch it on/off.

- Michael