Ed, seems I can
Kevin, a couple of things if you want to copy from one member into multiple places in another.
You can CREATE a member by specifyig C/M in the member where it comes from. Then COPY new-membername on the command line into where it wants to go.
Or you can COPY original-member-name line-start line-end on the command line to get particular lines from another member/dataset.
If you want to copy into multiple places in this other file, try prefixing the COPY with &. The & causes any command to be retained on the command line. Then you can use the PF keys to get to the next location, and put an A in the prefix area. If you need to do the copy, do a locate/find and then another copy, you can have a look at RETRIEVE to get the copy command back. Best when set to a PF key, RETRIEVE recovers commands one at a time.
Also look at CUT/PASTE to/from the CLIPBOARD. Look at multiple edit commands on the same line.
Lots of stuff to learn about the editor, it is always worth spending some time with the help/tutorial when you have a particular task you've not done before.