How can i Pcb Template

Hi, i must design 3 diffrent boards. But i must use same connectors same place and same pcb size. Therefore i think make a pcb template. But i coudnt find any documents. Do you know any tutorial or documents for pcb template ?

Try to have a look at the templating section of the KiCad document.

http://docs.kicad.org/KiCad/KiCad.html#_using_templates