add local library searching option on the online searching frame

Current: When I want to add one new entry into the library, I have to first search against the local library to check whether this entry have been added into the local library. If didn’t, I will perform the online searching. The problem is One search have to do twice.

Expected: In the online searching window/frame , add one option that control whether to search against the local library, or vice versa, in the local library searching window/frame, add one option that control whether to perform online searching.

Thank you!