A new feature to restrict access to specific product page tabs based on admin user roles was introduced to the module in version 1.7.0. The functionality is available as a part of an active product subscription or support subscription. You can find the 'amasty/module-rolepermissions-subscription-functionality' package for installing in composer suggest.

This can be configured in Advanced: Product Page Tabs on the Role edit page:

To allow access to specific tabs, tab identifiers should be used:

In case above, only Related Products, Up-Sells, and Cross-Sells can be visible for this user: