Hi Richard,
We do plan to have some sort of library interface at some point. Hopefully before the final release, but I'm not sure yet. One thing you can do now, which it sounds like Volker does, is to create a project file which has all the different clips you want already in it. Then you can save that project file and use it as the startup file by choosing it Startup panel in the Preferences. Change the Project Creation popup to "Load from file" and then choose the project file using the Choose File button. Whenever TG2 starts up, or you create a new project, the project file you specified above will be used to load the default scene from.
Regards,
Jo