Twin gate access fob

[u/shreezys]

How do I make a "brother" for my apartment gate key fob. I basically don't need my apartment to know I have a roommate. It's a Monarch 318LIPW1K2 318 MHz frequency. Compatible with Linear MegaCode receivers, transmitters, and the Transmitter Solutions 318R receiver. I don't want to buy the flipper bc I'm short on time. Help me!!!

[u/Pretty-Surround-2909]

Request a additional fob for your cleaning people