no problem, Maxim. 
have fun with Reaper! 
(it lacks in so many ways, because Reaper has rudimentary midi functions and looks ugly, please see: menu´s, plugin dialog boxes, etc. etc.) note: replaceable GUI pics are not everything (!)
BTW: Cubase has a modern GUI and it looks great, Audio and MIDI capabilities are very comfortable, and the Midi area are undefeated in comparison to other competitors like Reaper, Studio One, Pro Tools e.g.