URC6821: How can I program a missing function on my Big Button remote?

It is possible to add missing functions via a procedure known as “Key Magic.”

To use the Key Magic procedure, please follow the instructions outlined below:

1. Press the relevant device key.
2. Hold the Setup key until the light blinks twice.
3. Enter 994, the light blinks twice.
4. Press the Setup key once and let go.
5. Enter the 5 digit function code of the required function.
6. Press the One For All key you wish to assign the function to.
7. The light blinks twice and that key should now function.