The internal FX parameters on MK1 MixWizard3 12:2 and 16:2 consoles may be edited via MIDI using a PC running the Allen & Heath FX Editor software.
Due to parts becoming obsolete, the Wizard3 effects PCB was updated from MK1 to MK2.
But the FX Editor did not function with the MK2 units.
MixWizard FX Editor is available to download on the product pages
From the User Guide -
"Note: This user guide refers to models equipped with a revised effects engine (Mk2).
This is identified by a change from green led (MK1) to yellow led (MK2) effects preset indicators, and a change of serial number from prefix W31202 to W31222, or W31602 to W31622."
Is the software available for Apple Mac?
You may be able to run this program on a Windows emulator program, however.