TI BA II Plus - Easy way to enter repeating cash flows?

So I’m working through corporate finance right now and have come across problems with cash flows in 10, 11, or 12 periods that are all the same when calculating NPV or IRR. Is there a “shortcut” to be able to enter these flows since it’s the same amount or do I have to key each one in manually, hit enter, hit down arrow, and repeat as necessary? Thanks.

there is an option to enter frequency after entering the cash flow. so if 10 11 and 12 are all the same cash flow then enter c10 as the cash flow and f10 as 3. then c11 would now relate to cash flow number 13.