1. Make sure that the garage door opener is in programming mode. This can usually be done by pressing and holding the "learn" button on the opener for 5-10 seconds. The light on the opener should start to flash.
2. Press and hold the "program" button on the remote control. The light on the remote should start to flash.
3. Release the "program" button on the remote.
4. Press the button on the remote control that you want to program to the garage door opener. The light on the opener should stop flashing.
5. Repeat steps 2-4 for each remote control that you want to program to the garage door opener.
Once you have programmed all of the remotes, you can test them by pressing them to see if they open the garage door. If they do not work, you may need to repeat the programming steps.