Last fired scene id

Regis Planque's icon

How could I have the id of the last fired scene?

(fired either by pressing enter on a selected scene or by clicking on the play button of a scene)

Regis Planque's icon

Maybe my question is too convoluted.

I basically want a kind of live.observer that tells me when any scene is fired, and gives the id of this fired scene.

I don't find this in the LOM.

Source Audio's icon

it does not exist.

you can get selected scene state , you can get triggered state,

which does not say if it actually got fired or not.