When you need to add an asset into a section or feature in a page (a slideshow, between text, banner image, download, etc) the BOOM asset picker opens to help you find the right asset.
The asset picker looks the same as the asset manager with a search function on the right.
By default the view shows albums (A) however if you've already been looking at assets in an album it will return to that album view. In this case go to the album view (B) if needed.