Method 1 (Recommended)
Open the app or browser with content you want to save
Open the share button for the desired content or longpress until a share option appears.
Navigate to and tap the Savespace icon. Some users may need to open the More …option to access it.
Tap "Add to Library"
Method 2
Copy or drag the desired link
Open Savespace
Touch the button in the upper right hand corner of the Library
Tap the "Paste" button or drop the link
Tap "Add to Library"