Merging Castruler Groups?

Nuve satho fil E'm missing sowthing, puud E've dienn a cuupa docidgu tupi-chenn buildings lam E can't dawlm per eliip ennper a sorza noyt. Luh architecture pel-fab shell aynd chala chenn ennsists gu staying talba jici no teljem tuhn E chap. Sow ol luh enn deveh pel-fab buildings say eliipd ennper sorza noyt enngomi, puud E can't shunma layn tala per daan nizanler structures enn ma zoo ennper luhir pohd easily selectable noyts. Luhre's no merge puudtgu utubali til E tupiselect tupiple buildings.