I recently had a electric gate motor installed.

My question is to those that have had them installed, is what to do about letting people in to your yard when you are away?
I am currently out of the country working and need my Gardner to access the premise. So my grass isn't dead when I arrive home. There is a also a guy doing some other things on the outside of the place that needs access.
I was planning to ask the guy that installed the motor if he had a numeric key pad he could install, but unfortunately I havnt been able to contact him?

FWIW it is a solid gate and does not have a door access.