In the following window, select “Power Management”, then enable both “Allow this device to bring the computer out of standby”, and “Only allow management stations to bring the computer out of standby”:
Note that you need to tell WakeUp the Mac’s “Ethernet ID” (also called “MAC Address”) in order to enable WakeOnLan. WakeUp will auto-discover this address when you use its “Scan” feature. Else, get the address in “Network Connection”, double click on LAN interface, select “Support” then “Details...”. The Ethernet ID will be shown as “Physical Address”.