Batch function for changing numerous paper properties

Please make it possible that one can change (or insert) same data to multiple papers. For instance, if I import a batch of conference papers from a USB stick, then I would like to set all papers to be conference papers and for the same conference.

The facility to add to or replace, copy or move field content in a number of records at one time is already a part of the program.  

Once imported, while they are still a group, you can select that group and from the Tools menu in Endnote, explore the Change, Move, Copy options.  

This can be done on any group of “showing” references, so if you sort on the last updated or record number (select the refs and then “show selected references” from the references menu, so  they are the only records showing in your library) or on a group or search result set of references, you can do the same.