How do I choose columns in SourceTree history hiew

I somehow messed up my SourceTree history view and now cannot see any column except for description. I cannot find how to restore it.

This is Sourcetree 4.0.2 on a Mac.

I am sure that it has happened to me before but I cannot remember how I fixed it.

Solution

I managed to get it working

If you do a long press on the column you get a very volatile and awkward hand. If you just keep trying dragging to the right the missing columns sometimes appear.

It is very cumbersome and I find it amazing that this has persisted so long.