Tremolo Symbols Play: On/Off | AND | Non-playable Tremolo symbols

Purpose:
Use the (uneven) "Tremolo" strings sounds that appear on the 3rd channel within the Mixer with bowed strings (Ex. Violin, Viola, etc...) with the use of "tremolo" text, and still being able to write "Tremolo through stem" symbols/items without having them play (to avoid "even" tremolo).
When writing for bowed strings, it is a common practice to write "even tremolo" symbols and still have musicians play "uneven tremolo".

Steps:
1) Create any note with any duration
2) Use a "N-th through stem" tremolo item from the "Tremolo" palette (Ex. "32nd through stem" item)
3) Select the tremolo on the stem
4) Go to Inspector to tick/untick "Play" box
Problem: Inexistent "Play" box.

Thought workaround:
Use "Tremolo" symbols that may exist within the huge "Symbols" Palette (Common Keyboard Shortcut: "Z"), since they won't play.
Problem: Inexistent "Tremolo" symbols.

The only ones that appear are:
"Combining Tremolo (1-5)" and "Fingered Tremolo (1-5)".

Yet, they are slightly (but notoriously) different, and they appear to the left side of the notes instead of using the stems, which makes them hard to work with and readjust them in long tremolo passages with lots of notes.

Thoughts about this:
When working only with MuseScore, having the "Play" box would be quite useful. But if we talk about exporting MIDI data, the tremolos would cause lots of little MIDI notes instead of one with the written duration. That's why non-playable on-stem symbols would be a great resource and a working time saver.
Or maybe make the "Play" box do this changes to the MIDI data and have just one thing that makes both things? (Is this even possible?) Or maybe another box to apply or not these changes to the MIDI file?