Enable/Disable Driver Commands Rule
From TrainzOnline
This rule allows specific commands made globally available in the Driver Command Rule to be individually disabled and re-enabled either globally or for a particular train.
A checkbox list of all available commands is provided for configuring each command's availability.
The Enable/Disable Driver Commands rule executes at session initialization unless it's being triggered by another event as a child of another rule. Once started it sets the specified availibility of driver commands and completes immediately.