@Sarunas You might want to read this thread re: same IP address and multiple installs: https://forum.mailwizz.com/threads/fresh-mailwizz-install-on-a-new-domain.822/License is not a problem.
But as I can see in https://www.mailwizz.com/customer/licenses/index there is only ip address
I dont want to use seperate mailwizz sites if i can use all in one