Siebel Permission Management - prevent deletion for certain users

Is there a way to configure CRUD (Create, Read, Update, Delete) permissions for users without using Siebel Tools?

--> We need to prevent Deletion of records for most users on some entities. The users should be able to create and update the records, but deletion should only be available for certain administrative users.

I didn't find anything that can be configured (positions, responsibilities) that could implement this requirement. The "best" ways I've found to prevent users from deleting records is either scripting or COPYING the respective applets, creating new views with these applets, set No Delete to true, and handle access to those views with responsibilities. With all due respect, this just cannot be the right way.... it would be too much effort for simple permission management..