To create an album with content already in your grid space, simply tap on however many grids you would like to add and tap on the album icon on the bottom of your screen.
This will add all photos into a single folder.
To change the order of the content in the album, simply double-tap to open the album.
You can then drag and drop the content in whichever way you like!
UNUM also allows you to import a set of pictures into an album. Simply tap the "+" button in the toolbar. Select the desired image file(s). From there, tap the "album" icon and import those photos into your grid space.
NOTE: You can add up to 15 photos or videos to an album.