SSR Radiant Red (Common)   

Normal: X + 1 --- toggle suit C + 1 --- toggle transparency

Normal: X + 1 --- toggle bra X + 2 --- toggle tops X + 3 --- toggle arms Z + 1 --- toggle panty Z + 2 --- toggle waist

Normal: X + 1 --- toggle bra X + 2 --- toggle accesssory

This mod by itself will not change any costumes - for that you will need mod packs available from elsewhere and extract them into the Mods directory. You don't need to restart the game after installing a new mod - just press F10 in game to load any new mods.