Help with setting up a Salus Model RT500 RF programmable room thermostat?

There are 5 different settings to bring the heat on, is programme 1 to put heat on, programme 2 to turn heat off, and so on. if the heat is on ,can you turn the heat off with the control on the boiler . If you do not want to use the thermostat , but just bring the heat on and off as you wish , can you turn of the thermostat and use the controls on the boiler?