NIS 21.1.0.18 Trial Copy Product Keys.

I've loaded a Trial Copy of NIS 21.1.0.18, because I don't use the extras that would make it an N360 product.
Obviously, the trial copy is a single use package.
I have a NIS 3-pcs unused Product Key.
Question:-
After about 28-29 days of the 30-day trial, can I enter a NIS 3-pcs key, to run the Trial NIS up to a substantive NIS for a subsequent 12-months ?
Be safe out there ! AK
________________

I'm no great aficionado of Cyber Space.
No, FACEBOOK, no GAMES, no SMART PHONE,
no SMART TV, no TABLET, no TWITTER.
I travel light, embracing the extreme minimum reaches of SOCIAL NETWORKING. What I do possess is a grasp of hands-on chip technology, from 8-bit onwards; dating back before BBC MICRO, COMMODORE-64, ZX-Spectrum, and the birth of the Domestic Internet.
I cast no shadow, and leave no footprint on the firmament of the e-Galaxy.
My "Disk Activity LED" has more use of my PC, than I do.
"ANALOGUE", the new dawn. AK.