Replacing units without changing the data version?

Hello!

New to modding, been playing around with changing some units with heroes and other cool stuff and whatever I do it always changes the data version aswell… So I cant use these in multiplayer.

Im using the S Graphic copy and paste in the advanced genie editor and I also remove the hero glow from some heroes and I change the icons. Any tips on how to do this without changing the entire data version?