visual envelope

Hi,

i need some help finishing an envelope generator using the BlueSynthBuilder parts.
I was looking at the properties of the BSB Object made by Peiman Khosravi and tried to emulate his use of this Object. But without succes.
I would like to be able to draw an envelope with as many points as i like.
Can someone help with this?
ftgen_synthbuilder.blue

thanks
Menno