How to change default Safari bookmarks/search engine using Profile Manager?

Hi there,

I use OSX Server in Local mode as my MDM, and Apple School Manager at a K-6 elementary school, with a population of over 100+ iPads. While it's nice to direct students to URLs in Safari using Apple Classroom, I'd like to be able to push out default bookmarks to all student iPads, as well as reset their default Safari search engines to something extra safe, like Kiddle.co. Does anyone know how to do that? If it's not possible, can we add this as an enhancement request? Thank you!