I have searched and can't find any way to do this or anyone else having suggested it.
There should be a way to 'rescan' the properties of a prim an AV is sitting on without having to stand and sit again.
EG: a script sets the camera position and target for an av that sits on a prim You can then update the properties of the prim to change that camera view and position while an av is sitting on it but the only way the av can get the update is to stand and sit again.
Given a command along the lines of llReSit or llSitUpdate one could have the sitting av 'refresh' the information they got when they sat down.
This would allow things like scripting multiple camera angles that could be switche d on the fly while driving vehicals, etc.
If there is already a method for doing this, I'd appreciate any clues as to how to do it.
Thanks,
Racer P.