The proxy entities is not application of DraftSight. DraftSight unable to edit it or delete it. But we can controls the display of the proxy objects in DraftSight.
There is a system variable in DraftSight that controls the display of proxy objects in drawings Variable name: SETPRXYDSPMODE
0 Displays no proxy objects.
1 Displays proxy objects.
2 Displays bounding boxes for proxy objects.
Key in the command :”SETPRXYDSPMODE” and select the mode (0,1,2)
If you wish to hide proxy entities in drawing you can set this variable to 0>save dwg file Next time when you open dwg file no proxy objects will appear.