I would like to leave the clients Organizational standard itl file as read only. And allow the designers to add and edit to a Workspace editable itl file. Can OpenRoads read from two itl files at the same time?
Read-only libraries in a central location is a good idea. Write-able project .itls are a good idea (the Workset can point to it).
In the Create Template dialog, Tools > Template Library Organizer allows you to copy from one .itl to another.
When a corridor uses a template, it gets copied to the corridor. You can make minor deviations directly in the corridor; broad edits should get back to the project .itl for broader use.
Jeff Martin, PE, Civil Consultant, Bentley Systems