How do I process share Requirements Composer templates and types across project areas?

I want to create a requirement artifact template and multiple requirement types and associated attributes and share them among multiple "consumer" RRC project areas.
If there is no process sharing feature like RTC has then how do I do this and maintain standards across multiple projects areas following instantiation of a RRC project area? In other words, using a template at creation does not aid in long term maintenance.
Accepted answer

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It appears as though the "Import" mechanisim on "Manage Project Properties" page is the answer (?) Although if I maintain a single "process template" project with templates, types, attributes, etc. and I need to update 20 other project areas with an new and improved set of properties it could be somewhat laborious.
Is this best (only) way to do this?