> Unfortunately, I can't go for a new panel just at the moment :-(
>
>

I was really hoping that Sound Quest would work for all the front panel

> operations like the upper and lower buttons...

All panel controls are available to be adjusted remotely.

Details are in the MIDI Implementation Manual (xref: http://www.rhodeschroma.com/content/polaris/midimanual.pdf)

You can send messages to the 'Panel' to cause Switch Presses and Slider Moves.

For instance, if you wanted to press button 1 (the 'stop' button) you might issue:

F0 08 01 53 31 36 30 30 30 43 30 32 F7

Where:

0xF0 /∗ Start of Sysex ∗/
0x08 /∗ Fender Manuf. ID ∗/
0x01 /∗ Channel Number ∗/
0x53 /∗ "S" for Send Message ∗/

/∗ Stream number = Panel = 0x16 ∗/
0x31 /∗ ASCII 0x31 = the number "1" ∗/
0x36 /∗ ASCII 0x36 = the number "6" ∗/

/∗ Instrument Number = 0, always exists ∗/
0x30
0x30

/∗ Switch Press = 0x0C ∗/
0x30 /∗ ASCII 0x30 = the number "0" ∗/
0x43 /∗ ASCII 0x43 = the letter "C" ∗/

/∗ Switch number = Stop = 0x01 ∗/
0x30 /∗ ASCII 0x30 = the number "0" ∗/
0x31 /∗ ASCII 0x31 = the number "1" ∗/

0xF7 /∗ End Sysex ∗/

Note - if you don't know what MIDI Channel the Polaris is currently listening to (and if you don't have panel control to allow you to set it/change it), then you can try each of the channels to see which one is active (e.g., change the channel number above from 01 to 02, to 03, etc. to find which channel is being responded to).

The same general steps above could be used for any panel buttons.

The same approach (from the manual) can also be used for the sliders.

David Clarke