Add to collection follows Set category in the Images selection bar and
opens the concept's simpleInput ("Add selected images to collection",
"Collection name", Add) with the existing names as a datalist. Remove
from collection follows it while a collection filter is active and
reloads the listing in place, keeping the checked files still listed.
Every outcome uses the design's strings (section 7.4). The routes take
at most 500 explicit files, so an "all N matching" selection is sent
only when every match is loaded, checked and at most 500; otherwise the
action toasts "Select at most 500 images." (D138, #331).
Vito Sansevero
9408f29f13