Splitting all audio lanes at the same location

I want to Split all audio lanes at the same location using alt key. It used to work, but now it only splits the highlighted lane. Where do I alter the settings?

Alt-cutting all lanes without highlighting them all works with the comp tool.

When I alt cut a lane highlighted or not, it only cuts the lane itself and not the others

Are you sure you tried it with this hand-shaped comping thingy from the toolbox?

It works if you have no tracks highlighted and use the Split key command (Alt+X). Personally I don’t like this functionality as too often I ended up accidentally splitting tracks I didn’t want to. Now I use the mouse…