You can add optional settings such as expiration date and password.
Expiration date – You can add an expiration date just by choosing an appropriate time or date in the drop-down list.
Password – By choosing the alternative of not having your link public, you can add a password. Click on No in "Public?", and a box will appear.
IP-whitelist – You can add an "IP-whitelist", i.e. a list with IPs that can access the links without having to type in a password (this can be changed).
IP-blacklist – You can add an "IP-blacklist", i.e. a list with IPs that cannot access the links at all.