Options for changing the measuring unit

I'm quite new to Roll20; I've looked in every obvious place both in my profile and inside a test game for a way to set the unit of measure to the metrical system but I haven't found it, so I assume it just isn't there. It would be very nice for a non-customary units user like me to not be forced to translate every ft indication or learn a whole different system... or did I just miss where the setting I'm looking for is?

It can be hard to find at first. You need to open the Page Toolbar tab (1), then click the Page Settings (2), then it's in the Scale drop down (3).

Thank you very much! You're right, some options are quite hard to find. If I could give a suggestion it would be to put settings for the website, the campaigns and possibly "default campaign settings" (to be the default when creating new campaigns) all in the same place, like the account settings page.