We have a dashboard for our routers displaying traffic in / out to visualise our bandwidth between sites.  Our dashboards are displaying data in kb/s and we would like to show this as mb/s.  How do we do this for all devices e.g on mass?

We also want our dashboards to fix the axis of the graph so when you are looking at multiple graphs, all graphs are displaying data using the same axis parameters rather than the axis changing dependant on recent throughput.