Once you have selected a share, you will get the folders and files under this share.
Click on the folder name to enter the folder.
The folders and files that have been selected to be available offline are marked with a green device icon.
(Files that are in the process of getting up or downloaded show a progress bar under their name.)
The "•••" icon takes you to the options menu for the selected folder or file.
Here, you have the option to do the normal operations on the file, like "Share", "Rename", "Delete", "Create public link", "Lock file".
Pressing the "i" icon to enters the help menu for the file.
Pressing the sorting icon changes the sorting method of the share list to either alphabetic or latest modified.
The icon changes to the other option when pressed.
Pressing the "+" icon creates a new folder.
Press the cloud icon to add files to the current folder.