Temporary, or blue dot markers are used to identify items affected by an executed command or operation. These markers are temporary since the next operation always removes and replaces the previous ones (exception: the find function has the option of keeping existing markers throughout multiple operations).
Markers can be removed manually via the Remove Markers toolbar button ( ) in the Main toolbar, or via the Remove Markers command in the Edit menu.
You can move between markers
with the Previous Marked Item