DRAGGING PROJECTS IN FCP X?

Hello Ken, Folks,

A question about moving projects within a single library.
We are editing within a single library with a number of events and an associated project (timeline) for each.
With legacy FCP 7, it was easy to drag & stack the finished pieces (individual timelines) into one master timeline -- for the finished product.
How does that work with X? We've tried to drag one finished timeline into a master -- but it doesn't work.

Thank you,
John

Maybe try going into a timeline you want to move, select all (command + a) copy (command + c) and then go to the timeline you want to move it to, move the playhead to the end and paste (command + v)?