I was going to do this as a video but felt it was too long (~12min) so here’s some pictures instead:
All done from an unsaved mission in the editor, so straight up single player; open beta install.
Waypoint B1, M2, B3, and LS for airfield.
Plan cycled to 23 in the kneeboard (I think).
Select REF LOLA, computer to IN, code 9099, load cartridge, wait til load, then cycle to out and normal computer mode. Master mode to NAV, waypoint should show as LS on the field.
Once in air, all good:
Forgive any errors in all this, since I rely heavily on my kneeboard for Viggen operation, I’m fudging a lot of the stuff to “I know this works.”