Modify a Share Link
Step 1: Touch the action menu icon of the file/folder that has a share link.
Step 2: From the action menu, touch the “Share A Link” option.
Step 3: Touch the action menu icon for the link you want to modify.
Step 4: From the link menu touch the “Modify” option.
Step 5: You can choose to modify the link to make it downloadable or view-only, you can also set an expiration date for the link. When you have made the modifications you want, touch the “Save” button.
You will receive a message that the link’s permissions have been modified.