Device Overlays and Qt Image

Colibri iMX7D 1GB
Qt Image v5.15.2

Using 7" capacitive touch on Aster V1.1B. I would like to change overlays for this screen size and capacitive touch. I cannot find an overlays.txt to modify. How would I go about this ?

This image does not support DT overlays. You should modify am original Device Tree and re-compile it.