Adding customized user instrument to main "Layout" menu with own Stuff-Style and drum-kit

In the future version of percussion in Musescore 4.5.2, it would be convenient to be able to include a user-generated instrument in the main instrument menu, so that when it is included in the score, the staff associated with this instrument by the user appears in it, along with the desired drum.kit associated by the user to said staff. This can now be done, but by going through the Mischpult (Mixer) and specifically loading the selected drum.kit, but it is a somewhat tedious process, especially if you have many instruments.