Image as map input
Is it possible to use an image as a map to either click to input coordinates as x and y values or to plot the coordinates back onto the image? I've done lots of searching but can't find anything.
I want this feature to mark locations on a site plan or equipment drawing. Not a Google map.
AppSheet does something similar here: https://www.appsheet.com/samples/Track-company-assets-across-facilities?appGuidString=46a0a56f-d28c-4485-ad99-f62563893f3e