Many times, a plan revision or addendum adds additional sheets to the project; however, when slipping the revised plan sheets into the old set, we do not have an option to allow new sheets to be added to the set while slipping the revised sheets into the plans. Currently, we have to complete two separate operations, first you have to slip the revised sheets into the set, then insert the new sheets into the document. It would be nice to have the ability for the system to give us an option on how to proceed with the newly added sheets; where to add then into the set or ignore them.