There are several ways to copy cues / cuelist.
To copy a cue...select the cuelist, and then copy cue x at y enter. (Ex. Copy Cue 1 at 13 Enter). You can also copy a range of cues. (Ex. Copy Cue 1 thru 12 at 13 Enter)
To copy a cuelist...using the cuelist directory, press "copy" and then press the desired cuelist and follow that by pressing an empty slot.
To make a cuelist continually repeat, just keep pressing the go button. At the end of the cuelist it will restart at the top of the cuelist again.
Depending on your situation, a chase might work for you also. However, the chase will be tied to a beats per minute speed.
Here is a link to playing back cues. It is found on the Martin Controller Support Website, which is the manual broken into several sections.
You can also go to http://controllersupport.martin.com and type "Copy" in the search box. There will also be several examples.
Hope this helps,