Weblium Pro plan provides you with the ability to add a domain to your website. In fact, you can add more that one domain.
Important: your website will be shown under the main (Primary) domain. Other (Secondary) domains will redirect to your main domain.
To proceed, first connect all the needed domains to your website:
By default the domains will be put in the order they were connected. The first domain you added will become a primary one, and all others - secondary. Secondary domains can be recognized by the redirect mark:
When connection status of your domains is Connected, you will have an option to switch primary and secondary domains. For that, click on the three dots in the settings of the secondary domain and select Set as primary:
When adding the site to the Google Search console, make sure to work with the primary domains.