IBSJ – NISA – DRIP available within NISA?

Thanks to advice in this reddit I recently started an IBSJ NISA account. I'm so glad I did that. Looking in the IBSJ platform, I notice that I can change settings for reinvestment of dividends at the account level for my holdings outside of NISA, but when I change to settings for my NISA account, I don't seem to be able to reinvest dividends. The way I'd like to configure it is:

* Reinvest within NISA ==> This way, I believe, reinvestment of dividends won't count towards my cap for the year?

* Don't reinvest anything outside of NISA (receive cash) ==> It appears I can choose either DRIP or cash for these holdings, but I would like to receive cash.

Does anyone have experience with this? Is there any reason why DRIP would be available outside NISA and not within it?

by JPcoolstar