How to turn GSHSS off?

Hi! qtVlm documentation mentions on page 154:

Shapefiles can be used as barriers. For instance, if you do not want to use the imprecise gshhs coast lines from gshhs, you can specify in Charts configuration that you want to use coasts lines from vector charts, load a shapefile and indicate that you want to use it as a barrier. qtVlm will then stop using gshhs and will use the shapefile and eventually the vector charts if any for all coast’s detection functions.

I am able to load a shapefile via Charts > Shapefile and SHOM an mark it as a barrier, but I can't seem to figure out how to disable the GSHHS from qtVlm > Configuration. Any suggestions?

Help would be much appreciated!

Wesa

In vector charts parameters activate "Coast lines by Vector charts" and make sure you don't have any S57 where the barrier is

Thank you for the quick reply! The option "Coast lines from vector charts" seems to be grayed out. I haven't added any S57 files, working with a completely new install.