@dan rathbun said: And the API needs these, and the app needs to use them. Yes - agree. Your idea about multiply two Length to get and Area, and Area with Length to get a Volume is very elegant. I'd very much like to see this into SU9.

Hi. Dave I read your comment. I can only say, Thank you, is a so little the difference and it is so quick. Thank you again. Pedro

@dan rathbun said: @niccah said: Just a small question: Why you are writing " Sketchup.require"? Are there any differences to the "normal" require? FYI: The "normal" require (and load,) comes from module Kernel. Sketchup.require and Sketchup.load can call the internal decryption for rbs files, but the Kernel ones cannot. Okay, this sounds logic! Thanks for the information!