Share publishing of a plugin to portal with users

I develop a number of plugins as part of my work on Hibernate. I’d like to share the ability to publish these with other team members. They say they are not able to publish:

  The user 'xyz' does not have write permissions to plugin [my.plugin.name]

Is there something I need to do allow others to publish?

Thanks

Bueller? Bueller? :wink: