Toggle comment shortcut and columnar selection lost in Rubymine 2018.1

I noticed that in Rubymine 2018.1 a few keystroke shortcuts don't work anymore.

Is there a way to restore the original shortcuts? I don't understand why they changed.

- column selection was shift-command-mouse button-1. Now it does not work anymore. Instead there is a "column selection mode" that you enter and exit with a different shortcut (and until you don't exit the editor cannot do normal selection. Really unusable).

- toggle comment in SQL files. In the previous release the comment shortcut worked as a uncomment shortcut as well (toggling the comment). It still works this way in erb and rb files, it does not toggle anymore comments in sql files.

best regards