Well, Reaper is not my baby... But if it were, I'd keep theme-designing as far separated as possible from Reaper it self. By that I mean I wouldn't want to have it integrated into the Reaper application as a more or less complex "theme designing tool", since I don't believe designing themes and making music necessarily goes hand in hand. Maybe... after I get "my" long wished for all-around limiter: ;) And ReaPhaze and ReaWah and ReaXiter and ReaMod (chorus, flanger etc) and ReaAnalyze and ... and ... producing music related stuff.