Sorry if this is wrong section, wasn't sure if this was serious enough to be on support topic. (New to forums ) If it is, don't hesitate to move the topic.
Anyways, I just got Cortex Command B23/4 and there was a problem... When I press K to open the command menu, It doesn't open! I holded it, still same problem. Checked options, I can't redefine it! And I don't wanna use Classic Keyboard D: Could anyone help with this problem?

"K" is the classic keyboard button to open the command menu. Try right clicking instead, because Cortex Command is usually set on mouse and keyboard.

I use a mac mouse, I did try right clicking, Didn't work D:

Mac mouse? Why? And Try Command + Click, but it is really recommended that you use a mouse with at least two mouse buttons.

I have the same problem had alot of help but still couldnt fix it

I too can confirm that right clicking does not open the command menu on a Mac, at least one with a Magic Mouse. The odd thing is that it worked in some of the previous builds I have tested, but in the Steam version this is currently not working for me either.