This isn't an actual proper feature request because I don't have a really clean idea of how to solve it. But my instinct is to add ALL NPCs my characters come across. But then the character section gets really full. I've painstakingly retired characters to a wiki page before to try and deal with it in a long running campaign.
Maybe a custom tabs option to filter them; even allowing me to default hide certain tabs. Like the characters who are under the Dead/Inactive/Retired tab/filter get autohidden. Then I could tab by region, or criminal syndicate.
Or an option to mark a character inactive so it doesn't appear unless a little link at the bottom is clicked (?includeInactive=true or something?).
Or the ability to add a css class to the wrapper element of a character so I can use the custom css stuff to do it. Just a wee input box at the bottom of the character.
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