remote control for parking heater -- reprogram for 1hr rather than 30mins

[kp64zl]

I'd like to reprogram the heating controller so that when I activate the remote control it runs for 1hr rather than 30mins which is often too short.

Is this straightforward to do please?

if so how would I do it?

thanks

 

[Jason wallace]

any use...section "Setting the operation duration"