Open new link to Google Maps & Google Earth from WebPlanner
Given that Locus app & web don't have any plans for 3D visualization, this suggestion would be excellent partial solution for seeing the difficulty or scenic beauty of planned route.
Ideally add to right-click context menu (mockup below):
for example from current Locus WebPlanner position & zoom
After some experimentation I don't fully understand all the earth.good.com query string parameters, but it still mostly works.
see also 9 years ago https://help.locusmap.eu/topic/google_earth_integration