Gta5 Galaxy Super Yacht can be renamed through the following steps.
1. Search Rockstar on your computer and enter the RockStar official website.
2. Log in in the upper right corner.
3. After logging in, click your username and select settings.
4. Then click the avatar in the upper right corner and select Settings.
5. Click on the nickname under the account.
6. Click Edit on the right.
7. Enter the nickname you want to change and click Save Changes.