The library branch settings /cgi-bin/koha/admin/branches.pl have a "Pickup location" setting which allows libraries to specify which branches serve as pickup locations for holds. It would be useful to specify whether a branch can be selected in the interlibrary loan location dropdown as well, for analogous reasons (e.g., storage branches which do not fulfill holds nor ILL requests). For our purposes, we could use the same setting to populate the ILL requests branch menu, but it is likely that other libraries may want a branch to serve only holds or holds ILLs for one of any number of reasons.