Loops?

Is there a loop function?
Any examples?

Don't really know if you're talking about actions parts or lua.
Lua: http://lua.lickert.net/loop/index_en.html

For actionparts, you can loop by using "jump to action part #1". You must pause if you're using loops. Example use:
If character is on scene ...
...
Pause for 1ms
Jump to action part #1

it was for Lua. Thank you