Move the current time of the targeted timeline to a randomly picked
timed in the [min_time,max_time] range.
- min_time : The minimum time to jump to.
- max_time : The maximum time to jump to.
- timeline : The targeted timeline. If empty targets the targeted
entity's Default timeline, else targets the timeline with the
specified name ; there is a Default timeline with each entity and
one for each event under the targeted entity.
- timeline_play : If checked (the default) the targeted timeline
is played after the time jump. This is equivalent to adding an
Action/TimelinePlay beside the action.