Discussed in the English forum here:
white wrote: 2023-09-05, 18:29 UTCEither a bug or not supported. Note that in the Change attributes dialog, if you change plugin field tc.comment and use the >> button to enter ✓, it also places ? in the value field.brontosaurusrex wrote: 2023-09-05, 17:52 UTC Did some more experimenting, trying to use '✓' with your method and somehow it doesn't stick, i get '?' instead when reopening 'files/change attributes menu trying to save the preset.