Yup there's no auto scrolling built into OxyPlot at all. Every time you add new data to the Points lists on series tied to Axes, and you call InvalidatePlot(true), OxyPlot will recalculate the DataMinimum and DataMaximum values. I implement autoscrolling by comparing the previous and current X data added and panning by that amount.
As for syncing multiple axes when panning or zooming, I posted how I'm handling it here. Might help you figure out how to handle it for your issue.
As for syncing multiple axes when panning or zooming, I posted how I'm handling it here. Might help you figure out how to handle it for your issue.