Per-slice display policy. With multiple (default) several history entries can be on the
map at once; with single only the most recent one stays. Switching from multiple to
single automatically drops every entry except the latest (and clears their modules) so
the map matches the new policy immediately.
Per-slice display policy. With
multiple(default) several history entries can be on the map at once; withsingleonly the most recent one stays. Switching frommultipletosingleautomatically drops every entry except the latest (and clears their modules) so the map matches the new policy immediately.