[MACADEMIC]

I was asked how to delete an item from the Controls list so that only '---' will appear.

As there is no function for this, you have to work around by using a button which you have already assigned as a placeholder to 'erase' a line. I used the 'Circle' button for this, I'll explain how. First, I assigned the Circle button to Firing, which is where I wanted that button assigned in the end. Next, I assigned the Circle button to an item that needed to be blanked out. A dialogue opened up, asking if I would like to reassign this button since it had already been assigned. After confirming, 'Firing' had turned blank and the Circle button was assigned to the item to be blanked out. This way I went through all the items I didn't want assigned. At the very end I assigned the Circle button back to Firing, the result being the unwanted items appearing all as '---'.

Hope this helps,

MACADEMIC