Go to dig site, Right Click last button (spade) to show HUD and Left Click to cast Survay. Then ROTATE YOUR CHAR, BUT DON'T MOVE in the needed direction and press colored button according to Survey result. Move to other location, do same again.
It is strongly recommended to use GatherMate2 then you'll see all previous or imported dig-points on the HUD. When using GatherMate2 jump onto fragment before gathering! GatherMate2 data accuracy depends on that.
Heads-up Display (HUD)
On the HUD you can also see player arrow in the center and very small red circle that represents survey success range. And ofc all colored transparent overlapping areas that were set by you with colored buttons.
I'm glad you picked this up, Oscarucb! I haven't tested your new build, but one extremely annoying trait was the tool bar with the dots and spade kept resetting position back to default whenever I turned off AH via Addon Control Panel. The lock frame only worked if you never disabled the addon.
Hopefully I explained that correctly, and even better if you fixed it during an update and this didn't happen. I will test over the next few days.
I haven't used this addon, but the issue you're describing sounds like the same issue that has plagued TomTom forever. It's caused by the addon letting the game store its frame positions via SetUserPlaced and layout-cache.txt instead of saving the position in saved variables and restoring it at login. The layout-cache.txt file gets rewritten at every logout, and only stores position info for frames that existed that session.