How to submit transcipts other than current high school?

I took some college level classes at community colleges and stuff…

How to submit it…

I heard that I should request it at the community college and they directly send it to the colleges I am applying.

So. can I just go to the office and request it??

What if i’m not done with my application and i don’t even send my part1 application or application fee?

Do the colleges still accept the transcipt and hold it for me till I complete my application and send it??

please comment. thank you!