EditAction in a Repeater

I may well be doing something wrong, but I'm Trying to generate an edit modal associated with a repeater, to allow adjusting more details than i'd like to show on the repeater itself. I can't add an Filament\Actions\EditAction directly to extraItemActions(), and I cannot attach a model to a Filament\Forms\Components\Actions\Action. Am I just trying to solve this problem in the wrong way?