I want to give users permission to create issues for and manage certain projects but not all of them. I understand that the "project groups" feature is designed with this in mind. However, assigning a user to a project group does not change the user's permissions in any way. This is because the Security Schemes installed by default have nothing listed in the "Project Groups" column. In other words, the Project Groups column is completely blank. I will have to go through the security scheme and manually add the appropriate roles to each project group. Why is this? Shouldn't the default project groups have some default roles assigned to them?