I have in my score both measured and unmeasured tremolo. The articulation no.34 is a 32-th note repetition while no.40 (looking like an italic z letter) is the unmeasured.

How do I assign the playback properties for both strings and percussions? I know there is KS for the tremolo, but setting "perform 32-th note rolls exactly" seems to work only for the articulation 34.

Finale 25 here.