Delete

In your Gallery, tap the Select button to bring up a circle on each of the files.
Tap the circle to select the files to be erased, and tap Delete in the upper right-hand corner.

Duplicate

In your Gallery, tap the Select button to bring up a circle on each of the files.
Tap the circle to select the files to be duplicated, and tap Duplicate in the upper right hand corner.

Folders

Tap the folder icon in the upper right hand of the Gallery to create a new folder.
Long-press a file and drag it to the folder to move it inside.

To move a file out of a folder, drag the file towards “Home”.

Rename

Each new canvas will by default be labeled UNTITLED until you decide to change it.
Tap on the title to bring up your device’s keyboard and edit the name to your liking.