Hi,
When you go to search for a page/paragraph, with an APP, the dropdown list does not match the list of apps you can add to a paragraph.
https://www.screencast.com/t/bV4t026QP1
Only makes sense to have them be the same. And since you need to change it, creating 2 option groups to group them into Content and Ecommerce, would also help selecting the proper option.
Best Regards,
Nuno Aguiar