You'll probably get more assistance on this one in the "Cog, AI and Templates" forum; essentially though you have three options available:
1) Create your own *.smk file (JK Cutscene filetype). Whilst not impossible, this is usually overkill for a project!
2) Create you *.key keyframe file for the animation (which I personally find a huge headache - but that's just because I have trouble working out how PJEDI functions...)
3) Create your own cog: basically you would "move it" via: the "MoveToFrame" cog verb: http://jkhub.net/library/index.php/Reference:COG_Verb_-_MoveToFrame.
I'd go with option 3 personally because it's the easiest solution (and quickest!) to implement (and test different variables, eg: move speed, alter pitch/yaw/roll, etc)
Best of luck