User generated envelopes not saved?

[Dodgy]

I would like to be able to add my own envelopes to an object and have them saved without having to write an object plugin which uses them and saves them. I want to reference them in expressions, but not actually use them in a plugin, once they've been created. Is this possible? I thought if I made the envelopes persist, the'd be saved in the scene, but this seems not to be the case. Do I have to make these envelopes a master class env or do something else?
Thanks,
Mike

[faulknermano]

yeah, i think the envelopes persist within a LW session. but if LW is shut down something must call those envelopes back and their values. you need to associate the envelope with a script. a master class might be what you're looking for. otoh, if you associate the envelopes with objects i'd personally use object scripts (e.g. displacement, motion modifier).

[Dodgy]

Yeah, that's what I ended up doing. Turned out I needed a motion modifier anyway, so I let that handle saving the envelopes.