Yes, you need to create a new class that inherits from PageTypeBuilder.Tab.

using EPiServer.Security;
using PageTypeBuilder;
 
namespace EPiServer.Templates.Public.Tabs
{
    public class Advanced : Tab
    {
        public override string Name
        {
            get { return "Advanced"; }
        }
 
        public override AccessLevel RequiredAccess
        {
            get { return AccessLevel.Edit; }
        }
 
        public override int SortIndex
        {
            get { return 20; }
        }
    }
}

You can then set PageTypeProperty's property Tab to typeof(Advanced).

[PageTypeProperty(Tab = typeof(Advanced))]
public virtual string MyProperty
{
    get; set;
}

I've also written a little guide to PageTypeBuilder that should be helpful: A developer’s guide to PageTypeBuilder. Also recommend checking out PageTypeBuilders project home page for more information and links to other blog posts.

Hope this helps.

Frederik