Limitations with the assignment of bookmarks

Summary Limitations with the assignment of bookmarks, as this feature is restricted to a single user, a role, or all users. Basic Example _No response_ Motivation The functionality is very simple: to enable the assignment of bookmarks to multiple users and policies. Detailed Design Our Directus project is currently facing limitations with the assignment of bookmarks, as this feature is restricted to a single user, a role, or all users. We have very specific roles, such as Leaders and Operators, but within these categories, there are multiple subtypes with unique policies. For example, there are 10 different types of operators, each governed by its own specific policy, alongside a general policy that applies to all. Similarly, leaders may have different policy-based assignments, such as "Leader - Design" or "Leader - 3D," each of which might include multiple users. The current bookmark assignment system is inadequate because it doesn’t account for these nuanc…