How to LOOP music from point 1 to point 2?

Hello Dear ALL!

Sorry if i don`t find answer to this question in different topics...but

I need to loop a big part of song.... i just want to press button with start point, and then press a buttton in end loopping region... hot i can do That?

i don`t need to loop a bar... or 4 bars... i wat to loop a 2-4 min. region.

P.S. I`m using Pioneer DDJ - 1000. 

Any ideas how to do that?

Thanks a lot.