Hi there. 

I trying a proof of concept for a DB which would havr some similar features to a music app, or shopping app (it isn't either, but these make a good metaphor) I am attempting to build out a "shopping cart" or "playlist" where users can filter an exisiting table, and then "pick" items from the table to be added into a personalized playlist or shopping cart type table (the user would see a show view of that table when they view it). 

So for instance, we might have a joined table with song info (title, artist, year, label, album, genre etc.) and a page with a filter and list view of that joined table (I can do this part). But then I'd like a button to "add" songs to a new "playlist" which populates as the "songs" are picked by a user. The user could then view their "playlist" (or shopping cart) on seperate page (or in an accompanying view) and interact with it (add or delete, make notes, export as pdf etc.). It would be great if they could have multiple different "playlists" viewable only to them, (or possibly shareable with other users).

Would this be possible? Is there a tutorial or explanation on how to do this?

Thanks for your help!