Screen type specific action with PLC variable

Screen type specific action with PLC variable

Hi,

I created a screen with screen type "Extended trend" with an existing template.

When creating the screen, basic buttons are automatically created, such as "PLAY" or "STOP/CONTINUE". These buttons activate "screen type specific actions".
Is it possible to activate these screen type specific actions with a PLC variable?

For example, I want to start reading the trend only when a function in the PLC starts.
I know that I can link functions in Zenon with an activation PLC variable, but I haven't found a function to activate "screen type specific action" in the selection list when I create a new function.

Thanks

Jérémie