in other words, for now, the solution is to go to EABuilder.com and use the 2 conditions, and whatever parameters they need... crossing, that will then allow you to do your own "action" like draw arrow On Chart.
So now you save that indicator and import the indicator to Dreema.
When you use it in Dreema you are seeking an arrow only, and you know exactly what the definition of that arrow is since you created that indicator in EABuilder.com