Grid Spacing

Getting Stuff Done How do I .... ?
#1

Great software btw. Ive got a simple question i cant figure out how to change the grid spacing in ardour. It would b good if as i zoomed in the grid size went with zoom makes making beats alot easier as everything stays in time,

#2

http://en.flossmanuals.net/ardour/ch020_setting-up-the-timeline

c.f. "Snap Modes"