Consistent menu navigation and possibility to assign controller buttons for menu navigation

Hi,
After the 1.6 update, with the new UI, it is basically impossible to navigate all the menu options with a keyboard.

I use AntiMicroX to map some buttons to keyboard keys.
The navigation with arrow keys is not consistent. In some places, if you use the right key you end up going up, like in the main menu.
The enter is not always a confirmation key, sometimes it is "shift"(?) apparently.
I also found that in some places, to cancel, you need to use backspace instead of just esc.

I learned that I can access the "options" menu using the space bar now, but I don't know where the space bar is used in other parts of the game... so it is an extra key just for one option.

I would prefer to be able to assign my controller buttons to navigate the menu as well.