I have a scenario where site A has 3 pages X,Y, & Z. There is a report library R on page Z. Now, i know I can add this library R as webpart on Z but i am wondering if it is possible to add it as webpart on other pages say, X or Y.

When I tried to add a webpart to X, I don't see R in list of available webparts. Is there some site settings I can change for R to appear in list of webparts available?