Thank you for your suggestion. Ideas to improve WeMod are always welcome.
While we wait for WeMod’s developers to consider this idea have you tried launching the game before WeMod, rather than using WeMod’s Play button, as a possible work-around?
Launch the game with the parameters via the relevant launcher or shortcut (ie, Steam, etc).
Wait until you are on the main menu of the game.
Alt+Tab to WeMod, press Play, Alt+Tab back to the game (or use the WeMod Remote to launch the game remotely).
If the game doesn’t allow alt+tabbing, try Win+D instead, which minimises everything to the desktop.
Thanks again for sharing your idea. Until then - hopefully the above work-around will help.