Good to know :

Program Step-by-step:

1. On the OLD (working) remote:
 Press and hold both top buttons (usually buttons 1 and 2) for 2 seconds, then release.

2. On the OLD remote: Press once the button that currently operates the gate.
(This sends the code for the new remote to copy.)

3. On the NEW remote:
 Press and hold both top buttons for 2 seconds, then release.

4. On the NEW remote:
 Press once the button you want to control the gate.

5. Wait about 20 seconds.
The gate opener should now respond to the new remote.

Manual: