The transformation scenarios can be shared with other users by saving them at project level. When you create a new transformation scenario or edit an existing one, there is a Storage option to control whether the scenarios are stored in Global Options or Project Options.
Selecting Global Options stores the scenario in the global options that are stored in the user home directory.
Selecting Project Options stores the scenario in the project file and can be shared with other users that have access to the project. If your project is saved on a source versioning/sharing system (CVS, SVN, Source Safe, etc.) then your team will have access to the scenarios that you define. When you create a scenario at the project level, the URLs from the scenario become relative to the project URL.
When using the 
Apply Transformation Scenario(s) or 
Configure Transformation
Scenario(s) actions, the predefined scenarios are presented according to the
current detected document type, along with your created custom scenarios. The following
screenshot shows default scenarios for a DITA document along with several custom
transformation scenarios. The 
key
symbol before the scenario name indicates that the scenario can only be modified from the
Document Type
Association preferences page.
You can also change the storage options on existing transformation scenarios by using the Change storage action from the contextual menu of the list of scenarios.
Other preferences can also be stored at the project level. For more information, see the Preference Sharing section.