When symbolising quantities, and classifying using the manual method, you can't change the number of classes. The classes box is greyed out, so you can't click on it, and so is the right click option to insert a break. If you need another class the only way i have found is to change the method (wiping all the breaks you have manually set), change the classes and then change it back to manual. Can we please have an option to add classes for this method?
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