Vista 20P Programming
6290W Touch Screen
Default installer Code: 4112 (connected with VISTA) or 4140 (not connected with VSTA)

Add keypad to Vista 20P
https://www.alarmgrid.com/faq/how-do-i-add-an-additional-keypad-to-a-vista-20p

Adding and deleting zones
https://www.youtube.com/watch?v=n7wNh54ksYQ&t=89s