Roland PK-5 MIDI Pedal Transpose 1/2 Step

[CapitalSuspect]

Hi. Hoping someone can help me with this. Just purchased a used PK-5 in mint condition. Paired it up with my Juno-Di. Awesome. Works great. One problem. My band tunes down 1/2 step, and when I change this on the Juno, the PK-5 still plays standard tuning notes. I noticed the newer 5A and 6 have a transpose feature, and not just octave selection. I'm worried the 5 just can't do that.
One way around is to "mastertune" the Juno 1/2 step down in the "System" window. But just wondered if there was another way. Also, on "split" sounds the PK-5 only plays the first tone, even if in the lower octave that should be the second tone. Would be great if it would play both by changing the octave, but that doesn't seem to work, either.
Thanks!