IdStory Identity Manager

Please add new configuration option to choose which type of authorizer (guaranteeType) of the role should approve it's changes.
In a current situation the role is approved by any authorizer but we want to separate authorizers who approve the role assignment and the authorizers who approve the role definition.
In the default state when the configuration option is not set the behavior should not change - all authorizers of the role should be approvers of the change of it's definition. But when the configuration is set, only authorizers of the configured guaranteeType type should be approvers. I only need one guaranteeType to be set in the configuration - multiple values is optional, not required.