I'm a bit of a beginner in expressions, but I'm looking for a way to keep the initial position of a layer when adding a wiggle expression to it. Let me try and illustrate what I'm meaning. Basically, say I have a circular shape layer at position 960,540 (centered). When I add the expression "wiggle(.5,100)" and apply it, the circle immediately jumps to another random position within the range of those 100 pixels (say 988,522). What I'm looking to do is be able to add that same expression, and have it continue it's random motion, but start initially from the position of 960,540 so that there's no jump when activating it. I'm aware of "valueAtTime" condition, but am unsure how to use it or if there's another/better/easier way to implement what I'm looking for (maybe just using "value")? Thanks for the help.