Hi Victor,

Thanks for reaching out to us. The activation code needs to be inserted in Activation settings tab. If you do not see the field or the option to input the activation code, this is most probably because it's already activated or you have a lite version. In this case, you need to deactivate the license (in the bottom corner, you will see a button) or if you have a lite version, you need to remove this version from plugins and then install the new license (pro) and activate it manually.

I hope it helps.