Are you saying that there is no way built into AutoCAD to fully edit your coordinate file? Delete, edit, etc.?? Wow!! That will be a MAJOR issue especially once the drone technology goes full bore. Those are Huge files.
Can you at least do double click editing of the points on the screen? If you erase a point on the screen is the coordinate file updated in real time to reflect this change?
In Point Groups, you can delete points from a group, but that does nor delete it from the source file. As far as I know you cannot edit point attributes in point groups.
This issue is a "war stopper" for a surveyor. It appears that at some point the need for coordinate values goes away? So, you take my site survey and add your design details without worrying about coordinates, then do like Architects love to do, rotate everything to "look good' on the sheet and then hand the design to me and say, "Lay this out on the ground". The coordinate file no longer matches drawing details and they have erased my control points that I had shown in the drawing because "they got in the way".
Maybe this is why so many Surveyors have switched over "to the Dark Side". A Surveyor's world is ALL about coordinates. Autodesk wants me to pay 8 Grand for software that basically ignores coordinates?
I suppose this is one of the main reasons that our engineering types load Carlson on top of AutoCAD. They are using Carlson Civil which has full coordinate control, a hefty survey portion and a robust GIS module all built in.