I've exhausted every avenue I can find to change the default dictionary in the workspace: typography from US English (now that's an oxymoron if I ever saw one!) to British English. Every time I open a document I get US English as the dictionary. It matters not if I open a photo or something with text in it. Sometimes when I'm in a hurry, I forget the default dictionary is American and get a blast from clients for my spelling. Can someone please inform me how to change the default dictionary so that new documents all display British English?
The Dictionary setting is designed to be a "sticky". If you open a file that has US English setting saved in it, it will change your UK setting to US and you have to manually move it back.