need help with Auto Target macro

hey all, im kinda stuck and need some pro help here im using Ac-Tool
i know how to scan a specific x,y location for RGB but is it possible to scan the whole screen for it?
for exmaple.. RGB scan works good if the monster respawns at the same location but if it respawns at a different spot each time its useless...
so ive been wondering is it possible to scan the whole screen with RGB or is there a more simple method

better way is to use the radar, no need to scan for random colours each time then either, if u set it to zoomed in and then just need to cross reference the radar location with its map location (u will using overhead camera for that)

or u can use YaRFOB