Server travel with new game mode in Blueprints?

I’m struggling to open a level with a chosen game mode from a lobby. Open Level just kicks me out to the main menu, and I have no idea what the console command to use with servertravel would be.

Any tips?

if I am not wrong,
the game mode is linked to the level itself so if you want to change the game mode, make duplicate levels with different game modes and change the level accordingly

That would mean duplicating huge amounts of built lighting data (unless you can tell the duplicated levels to use existing data which I don’t think you can).

I figured it out, the command was simple: you just add ?Game=(path and proper game mode BP name).
The problem was wrong specified asset name format. Correct one is: GameMode_BP.GameMode_BP_C (for GameMode_BP)

Could you be a little more specific with the full server travel command?