Hi there!
Thanks for the explanation! In that case, you really don't need to disable all the touch/mouse interaction with a plugin. I believe, your best move would be to remove/change the position of the directional pad from the scene menu and add a new button to handle the arrow buttons on the menu.
Meaning, that put the buttons in a place where they will not be above anything that can be touched/clicked.
Otherwise, you will have to wait for me to do a fix(only next year). It would be helpful if you can send(google drive, dropbox, one drive, etc...) a sample project replicating this issue ^^