Guess we'll never know! LOL!!
LOL..... now you see him, now you don't....
@
photo photo .... don't goooo.... come baaaaack!.....
You have 2 options .....
Are your documents grouped into a single window? Break the grouped (consolidated) document windows into separate windows (MENU>WINDOW>ARRANGE>FLOAT IN WINDOW). Or simply click/pull them apart by clicking the tab title bar of one and drag//release in the workspace. Position the documents in the workspace to make drag/drop an object easier.
OR
Without breaking the document windows apart, click the object or part of image you want to use in the first document. Don't let go and drag your mouse pointer to the tab title bar of the second document. Hover there for moment so the document view will switch to it. Once the document is in view, drag your mouse pointer back into the document and release mouse click.
Viola....
.... like magic.
Mr.IHatePhotography :banghead: