Time fired in state?

[hvorragend]

I am trying to create event sensors for homematic.keypress events.

My problem is that I alway have PRESS_SHORT in my state. So that I cannot see if this entity has changed (the value). I just the the last change time. It does't make sense inside a logbook card. 😄

Is it possible store the event time in this new entity? I'be tried the following without success:

- platform: eventsensor
  name: Doorbell
  unique_id: eventsensor_doorbell
  event: homematic.keypress
  # state: param
  state: time_fired
  event_data:
    name: Doorbell
    param: PRESS_SHORT
    channel: 1

Or is it possible to clear the state content similar as "off_delay: 1" (see binary_sensor)?