Running multiple loop script all in one

[white700]

Hi, I was wondering if this was possible to run multiple scripts all within one big script,
the thing is each script need to be in a loop,
;script1
rep
perform xyz action

;script2
rep
perform xyz action

is it possible to have one big script running multiple little scripts running in a loop? or it can only
read line by line and cannot read multiple line at the same time?

id like to know how to make one big script instead of making individual loop script and opening 1 by 1
thank you in advance.