With gutenberg, our ACF fields dont have the space they used to. To popup a modal, for some fields/groups is something we’d make great use of.
When selecting multiple files, we’ve used the gallery field, instead of a file repeater, as this allows for selecting multiple files at once, and gives a nice grouped view of the selected files. Please change the button text to “Add”, or something like that.
Perhaps you guys could create a new “Files” field with the same admin look as Gallery?