It's pretty simple. The select mod button doesn't select multimod yet so you need to add it as the last options in the custom flags box. You type -mod Mod1, Mod2, Mod3Is there a way to specify which mod folder takes precedence over the other, i.e. in the same way that files in the data/whatever directories take precedence over .vp files?
Mod1 has preference over Mod2 which has precedence over Mod3. It's basically that simple.