Balancing Masterscore and Part Clefs Properly

I’m having odd problems viewing certain instrumental parts in the masterscore with the correct clef. I’ve scoured the manual here:

https://musescore.org/en/handbook/clefs

and here:

https://musescore.org/en/handbook/staff-properties

Having specified baritone saxophone as an instrument in ‘Staff Properties’, its separate part looks OK, but the masterscore shows a treble clef for the instrument with lots of low down ledger lines.

I can’t change the clef of the baritone saxophone in the masterscore to bass clef, because this upsets the separate (player’s) part - affecting the clefs it shows. (Baritone saxophones sound a chunky octave and a major sixth lower than written.)

Today, masterscores using so-called ‘concert pitch’ often state:

‘All instruments sound as written, except for the usual octave transpositions.’

…Thus the masterscore can show all instruments in the same key, with clefs appropriate to the register of the notes used. ‘Usual octave transpositions’ would apply to instruments such as timpani (sound an octave lower than written) and glockenspiel (sounds an octave higher than written), piccolo etc.

My question is: how can I use one clef in the master score, without affecting the clefs shown in the parts? As MuseScore offers the possibility of setting staves to musical instruments with pre-set properties, one would have thought that the masterscore would present things more logically. …?