Make sure you have layering mode off, and then paint the areas you want, with the texture of your choice. In case you’re editing a map with the Scenario editor, of course.
Scenario editor? no… I’m trying to make a terrain mod without these… I don’t know what is this “layering mode” thing and how to turn it off or how to paint areas I want, I’m not a “pro mod creator” I don’t use any external program, I just copy files from other mods and make changes inside of it, but I can’t find a way to exclude these stuff from the terrain (which for me is kinda ugly) and I would like to remove it somehow, how can I do that exactly?
\resources_common\terrain\mask-mod
Hey Vivizinho24 !
I just discovered your gray smooth terrain mod and love it, but I wonder if you would be kind enough to make one without the engrained grid visual, as I use the ingame grid which I adjust myself.
Thank you in advance for your answer,
Cheers and glhf ! 
Sorry bro I only saw it now… there you go (I tried sharing the link but don’t know if it worked) so I’ll share the name of the mod Gray Smooth Terrain No Grid Version glhf!