Here is a link to a video produced to help in editing existing Arena Check-In labels.
Content Level: Beginner
I know this is an old post but I have questions about editing Check-In labels. This video will not play because it uses Flash.
Wow, that is a very old video with check-in label editing demonstrations on older versions of Arena, SQL, etc. If you want to watch it, you can still get a flash player extension to your browser that enables you to view it. Some of the steps would probably still work. Although, instead of downloading the rdl from Reporting Services and editing with Visual Studio, now you can use the built-in Report Builder.