There is a component I can’t find. The name is “N”
The picture is in attachments
Thanks a lot!
“Unit Z”
Just double click on an empty spot of the canvas and type “z” … first result of the search (on the bottom of the list).
It creates a vector oriented in Z direction with length = F.
You made my day. 
Thank you.
It’s just Z. Notice components’ names are rotated 90° counterclockwise.
Omg this is so obvious 
Haven’t used Grass for ages!
Thanks a lot for explaining 
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