Allow side mouse button binds.

@Winneh2 Thank you for confirming and providing your workaround.  I'm adding my experience to this post in case it helps anyone else. After trying your workaround, I can now bind my side mouse buttons to an action.  I think it's odd (maybe a bug) that you have to hold both mouse buttons to bind at least one side button.

My mouse: ROG Gladius III

Situation:

You can't bind a single side mouse button to an action, for example, evade or dash.

Suggested workaround:

1. Select your action, in my case, "evade / drop".

2. Hold both side mouse buttons to bind to the action (I only have two side mouse buttons).

3. Select the same action again, and hold down the side mouse button you want to bind.

You should now be able to bind either mouse button to your action.  I tested in game, and confirm it works for me like in Jedi Order.  You can still bind a single mouse button after restarting the game.

Hope this helps, and big thanks to @Winneh2 for the workaround.