Assets with gallery app

I am using the gallery app. I also have a few images in 'Asssets'

Is it possible to have the assets filled with all the images that the gallery app is using?

I want to be able to add some of the images that are in the gallery into other pages.

Thanks

Thanks Drew - so there's no way I can allow the user to use an image thats already in the gallery, rather than them having to upload it again into the system?