Possibility to create bigger sized graphs (Export as image)

Sizing options for 'Export as image’
eg. Quad-sized images for printing or multiple width to have more room for text

A little form, to enter width and height, beneath the image would do…

This is an issue in flash graphs too (if you chose an interval using period=range&date=(interval), you cannot specify if you want weeks / months /years, and it defaults to days, and the output is similar to the image