LVN Marker is retired.
Retired — superseded by Edges & Ledges, which finds both HVN and LVN levels in one add-on. Edges & Ledges finds and marks high and low volume nodes (HVN / LVN) on your Bookmap chart — served through Bookmap's own Cloud Notes. Pick your session, copy one URL, done.
See Edges & Ledges →
The LVN Marker download has been removed. Edges & Ledges replaces it — free, formerly the HVN/LVN Markers.