How to enable the plans page in the user's panel
The plans page should be available for all users if you want it. For this reason i've created a component with the plans page. The component is called Plans and could be found in Administrator -> User -> Components -> Plans. Enable it if you need.
If the Plans component is enabled, you could add it to a menu. You're deciding in which menu of the user's theme it will be. Some menu supports even the icons. You could copy the icon like in my video below or you could add yours more cool icon.
The Plans page will work only if the user is logged in. Don't add its link in the Frontend themes.