DelPct
Command
line: delpct
Description:
delete all
topographical points
TopoLT
toolbar: 
Menu:
When applying this command, all entities from drawing those
form points are deleted.
All attributes blocks (nodes) and all there is on the
layers, which are allocated for point, respectively layers of: codes,
elevations, leader lines, symbols, names, overlapped texts, are deleted.
Warning: do not draw on one of
the layers that define point because when this command is applied everything
that was on that layer will be deleted!