[Happyfungi]

The sites wont be part of the generated map file that semirandom makes. But, when you start the game your mods will kick in so yes they will be used when you play. The sites will show up in open lands, say around starting sites, and in semirandom lands that don't use #killfeatures or that don't use all 4 site slots. I may not be 100% right about this but I use several site mods and I see sites from them often, and I only play semirand maps when playing single player.