yes and yes
to loop:
if you havent already - name the cue you want to loop back to (2nd column - ie give it a cue name.)
Drag the 'GOTO' button to the (end) of the cuelist and select the cue to loop back to (the one you named) from the drop-down box on the GOTO cue.
set time:
You can also set the timecode to a specific value (inc zero). Drag the stop button on to the cuelist. Click on 'stop' command and change it to 'set time' and adjust the time to required value.
See pic attached
(obviously, set time cue would never be reached in this example - but it is an alternative option depending upon requirements)
Simon