Hi! It seems impossible to bind the "+" and "-" (plus and minus) keys. The easiest way to explain what happens, would be asking you, try it yourself. Don't think its remote related. But in any case, I have a Harmony 350 and these are the steps. Press "+" on Flirc / Press "Ch+" on Remote = nothing! Press "-" on Flirc / Press "Ch-" on Remote = binds too "+" ??? Also, the Flirc/Kodi Harmony profile has incorrect binds for (Zoom-) and (Zoom+) Should be "-" (Zoom-) and "+" (Zoom+) So please have a look at this as well, thnx.