Nice WIDE M Installer's Instructions page 23

Receiver Setup
From Standby status
Action
To enter the program
menu. Press and hold the
 button until buzzer
beeps.
Scroll < or > to select the
receiver setup option.
With "Receiver Setup"
on the display, press and
release .
Scroll < or > to select the
Erase remotes option.
With "Erase remotes"
on the display, press and
release .
Scroll < or > to select the
Erase ALL memory option.
With "Erase ALL memory"
on the display, press and
release .
When prompted, press and
hold .
While holding  begin
holding the > button.
When buzzer silences.
Release the buttons.
After erase ALL is complete.
After the display confirms
the erase ALL is complete.
Scroll left or right to next
program option.
Receiver programming and setup.
Master erasing all users from the memory.
- "Selected" mode -
- Standby
Description
Display and buzzer
confirms.
Display scrolls
through options.
Display shows current
option status.
Display scrolls
through options.
Display shows first
erase option.
Display scrolls
through options.
Display then prompts
you to press and hold
the  button.
Display prompts you
to now also begin
holding the > button.
Display confirms the
erase ALL is about
to begin. Buzzer
beeps intermittently.
Releasing either
button at this stage
will abort the master
erase.
Master erase begins.
Display confirms.
Display confirms.
Display reverts to
Erase ALL
main erase remotes
Erase complete
options.
The barrier can be in any position when performing this routine.
Display
Programming menu
<or> for options
Receiver Setup
<  = change >
Receiver Setup
Quick learn
Receiver Setup
Erase remotes
Erase Remotes
Select Address
Erase Remotes
Erase ALL memory
Hold  to
erase ALL
Hold and > to
erase ALL
Continue holding 
and >
---------------------------
Preparing to
erase ALL
Erasing ALL
Please wait...
Erase ALL
Erase complete
Erase Remotes
Erase ALL memory
EXIT back to standby
OR
status
23
Response
Buzzer
x2
x1
On/o ...
Barrier
"Selected" mode
- Standby