Hi, which is the real function of the Rec Channel Status, it does not work to arm the channel in recording. Are there any differences with pro version?
welcome grlcag!
Individual channels for multi-recording can only be activated when connected to a VST Connect PRO plugin. These get recorded in full resolution on the Performer computer and can later be received via the “Get HD Files” function, but again only with the PRO version.
Thanks, why is the rec channel status also present in the master section? I bought the pro version today, i will try! 
You can switch HD recording for master individually, if you don’t need it because you only need to (HD) record single tracks (like with drum recording). The compressed stereo stream is always recorded in the Studio regardless of that buttons state.