Completing/correcting incomplete reference list

Dear all

Is there a way to update/correct incomplete citations in endnote file, e.g., include the page number, volume number etc via a single click? It is quite painful to do it one by one. Imagine a paper with >300 reference. 

It should do that automatically, if you have corrected the records in your library? You can update records from endnote thru the right click  “find record updates”, if you download from a public database and the publication gets updated from a “preprint” available online, for example. 

The trick is to make sure first author, year are the same, so endnote doesn’t think the record is no longer in your library and depends on the “traveling library” version rather than the updated record. If it doesn’t update, check where it is pulling it from, thru the edit citation, more dialog box