we have the option to create custom lists for titles and for people. for titles, it is possible to add them to a list directly from the titles page. people however can only be added to a list by editing the list and looking up the person.
therefore, I'd like to have a similar button on a person's detail page that lets me add them directly to any of my people lists.
this feature should be complimented with the ability to filter search for people I've given a heart, but I believe that has been suggested already
