On my Swiss/German Keyboard, the Shortcut for temporary overwriting the clip connections is Cmnd + "<", then I get the small orange circle, so I can move and slip a clip without its attached Clips. But how do I switch it back? When I let go of the key, the orange circle stays.
I had the same problem on our French keyboards. I have remapped the Override Connections shortcut to the "<" key (without any modifier) using the Keyboard Command Editor and since then everything works perfectly.