Enveloping small areas

[Pancho]

I got a big fish with several fins. For the enveloping I'd like to envelope first the main body with the main bones and then envelope the fins with another group of bones. I'd like to work this way to prevent the small bones to influence the areas of the main body and vice versa. Is there a way to do this or how do I re-weight certain areas to prevent unwanted conflicts between certain bones. I do this for the first time, so I don't really have a clue.

Coming from LW I'd try to set up two envelopes (one with only the main bones, another with only the small area bones) and blend those together via a weight map into one.

Can somebody point out a way to do this?

Thanks in advance.

[grahamef]

Check my answer on the area: http://area.autodesk.com/forum/autodesk ... page-last/