The usability of filtering by library (groupID) is not sufficient. As discussed with colleauges, better do it this way:
Input filed ILN/ISIL to type in number (no typeahead by name)
Hitting enter after selection should give a clear feedback, Right now there is a delay before something happens (because page reload takes time). Maybe show a "please wait" popup or spinning icon?
Add an "X" button to clear the groupID filter instead of selecting "all"
The usability of filtering by library (groupID) is not sufficient. As discussed with colleauges, better do it this way: