With booxi, it is possible to transfer the role of administrator or the property of an account to another user.
Here are the steps to follow:
1. Go to the Personal tab,
2. Then select the profile to which you want to transfer the administrator role, by checking the corresponding box.
3. Once the profile is selected, click the Options tab,
4. Then click on "Transfer admin role"
5. Click the Confirm button, and it's done.
The selected profile then becomes the administrator and is therefore able to make the desired changes to the account.