On the left side, JabRef offers Web search (Activate using View -> Web Search).

When I press "L" in the search field, "LOBID" should be selected.

Requirement: Enable search.

Code hint: Should be same changes as #14031

Additionally: Go through the preferences dialog (File >Preferences) and for each ComboBox with fixed values, replace it.

Example:

NOTE

Following is a combo box allowing free text - this should NOT be replaced (because users should still be able to key in values)