Dual/Poli Tonality

Hi everyone,
I’m curious to know if Dorico 3.5.12 supports Dual/Poli tonality. Just interested in exploring this composition technique.

If you’re asking whether you can have different key signatures in different staves, the answer is yes.

Select the staff, Shift-K, enter the key signature, and close the popover using Alt-Enter or Opt-Enter.

Thank you. This solved my problem.