Node red keyboard shortcuts (option a)

I’m in firefox on a mac. I’m struggeling with keyboard shortcuts, specifically the ones used to arrange the flows.

In the keyboard settings they have shortcuts like this:

Neither the left or the right alt/option key works for this. I tried changing it to “alt-c” for align to center, but that doesn’t work. A command like “command shift e” works, And I have to write it in the settings as “ctrl-shift-c”. I would like to use the option keys. Any luck for you?