Create symbols from Global Edit
Global Edit is great, but it should have a way to make the globally selected items into multiple instances of a symbol. Once you start Global Edit, as long as the individual items qualify as being instances of the same symbol, that option should be made available to you.
Meanwhile there is a commercial script to achieve this:
You ight want also like another one, to replace global-edite objects with symbols at once: https://sttk3.com/blog/tips/illustrator/global-edit-to-symbol2.html
Sure, both methods should be available from the box, along with converting found objects into a selection: https://illustrator.uservoice.com/forums/333657/suggestions/38097442