Automation: Zoom control added to graphical authoring canvas
Published date: November 23, 2015
For graphical runbooks in Azure Automation in the Preview portal, you can now zoom the canvas to view runbook details or to get a higher level overview. The four controls allow you to zoom in, zoom out, fit-to-canvas, and restore default view. 
Canvas Normal Size 
Canvas Zoom Out 
Canvas Zoom In
Canvas Normal Size Canvas Zoom Out Canvas Zoom In