hi,
after few hours of work and a lot of help I managed to achieve the multy cast ray that I needed.
Now the th9ing is that I would like to see the rays in the game as well.
I tried with renderline, but I can see just one ray per time, and the rays are traced within a for cycle… so the one I see is just the last.
Another option was to use instances… but again, I trace one ray per time…
and they remain on the screen forever…
Any idea on this?
thanks a lot 
PS enclose is a jpg from the editor, this is what I am trying to achieve…
