Designing envelopes is a very simple task in Buzz. Envelopes
are based on a serious of lines separated by points. You create an envelope
in Aldrin by adding points and dragging their handles into place. The following
tasks enable you to do this:
Add an Envelope Point
To add an envelope point
left-click anywhere within
the black area
of the Envelope Editor. A new handle will appear
in the spot you clicked.
For future versions:
Edit Points
To edit an envelope point
left-click its handle
and drag it
into a new position. If you would like more
precise editing, right-click on it and select Edit Point from the pop-up.
This will allow you to type X and Y coordinates for the point to be placed.
Delete Point
To delete a point
left-click on its handle, and
select Delete point
from the pop-up