Doorman close door button missing with custom keybinds

[Internet Hate Machine]

I was told there is a custom keybind to close one door if you are far away and decide to make another, this button is missing for me and I also don't know what to look for in the settings as I can usually do every action on other heroes like cancel on other heroes like Pockets 1 with Space. I do have full custom keybinds.

 

[Internet Hate Machine]

Update: The button is the same as self cast which is double tap for me, this is a bit confusing as it's not a self cast but a cancel and cancel is on another keybind (Space), also it would be good to visually show which button to use to do this.