Maximenu CK PRO Activation code

Hi! 
I have found my activation code in my profile/orders. Where do I put in my website? I dont see any relevant option/field in the MaximenuCK Component. (Probably I am missing something).

Hi
there is no activation code, the extensions are working immediately after installation
what you have in your account is a licence code, which is useful if you want to enable the automatic updates to download and install the files directly from your website
www.joomlack.fr/en/documentation/miscellaneous/202-license-code

CEd

I missed the part about the Extensions Manager!! My bad

Thanks