Mac Notes - is it possible to search in title only? Or bulk convert titles to tags?

I've just moved my entire Evernote archive (3500 notes) over to Mac notes because it is cheaper and works better across my Mac devices. However:

• in Evernote I could search "intitle:XYZ" and only the titles would be searched. Is there a way to do this in Mac notes? If not, please could this function be added?

If that is not possible:

• is there a way to build convert the titles of all my notes into tags?

Many thanks!