Store PIN for alarm?

Unable to figure out how to ARM my ELK alarm using UI7. Same applies to DISARM.

I wish to use a 4 button SCENE controller by our bedside to ARM/DISARM the alarm but it keeps failing, wanting a PIN for the alarm.

I know there was a way to do it in UI5, but I’ve forgotten how I did that.

Is there some LUA code that I haven’t found?

I have searched and searched.

Anyone with a hint?

Thanks in advance,

Bill