I have a use case where I only want certain Route Templates visible to specific user groups. I tried to achieve this by setting up a new Collaborative Space and adding specific members to this space. This did work to a point however I learned that if a task in the template is assigned to a user group, than anyone in that group can see the Route Template even if they are not a member in the Collaborative Space. 

Are there any other options for me to share a Route Templates with only a specific user group?

Collaboration Space: Product Engineering

Route Properties

Route Collaborative Space

Route Tasks – 3rd task assigned to user group “Process Engineer”

User Group: Process Engineer Members

When the user logs in and goes to the list of Shared Route Templates, this template is visible for the user and is allowed to create a route from it.