as I got the lastest version, I did't know how to use some new funciton.
1. Nb import. What's that??? what can it do?
2. Tracer buttom. If I push that bottom, I can only see a big wall, nothing on it,just a big wall.how can I use the function???
Regards!

1-nothing do to, it's just an counter
2-it's a future function, actually under dev ;-)