Filter question: network range AND specific IPs

I currently have a rule set up to filter syslogs coming from a range of IPs (using the IP address > IP Mask setting). However, I also need to include IPs from a different network.

Example:

Currently I have 172.16.0.0 / 255.255.240.0

I need to also include specific IPs in another network, like 192.168.1.33, 192.168.1.78, etc.

I'm pretty sure I can do this with RegEx, but a bit lost from trying to parse the Help for that section.   Would it be something like "172.16.{1-254}.{1-254}" "192.168.1.33" "192.168.1.78" ?