This sounds better if it is a permanent setting. It means people don't have to
remember to get the right permissions set (a big plus :-). It also stops you
accidently screwing up your own movement. Especially if preferences can be the
list of things you would like to keep.
You would also need to let someone over encumber themselves by a set amount as
sometimes it is acceptable to move at a slower rate as long as one is at least
moving.
Ross
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Ross Inglis ! Disclaimer: My opinions are my own,
R.A.Inglis@bra0801.wins.icl.co.uk ! I do not speak for my employer.