Some random suggestions: 1. the icons that appear under a column when you're editing it should have tooltips so you can see what they mean 2. there should be

Some random suggestions: 1. the icons that appear under a column when you're editing it should have tooltips so you can see what they mean 2. there should be an undo function 3. it should be able to figure what you mean if you retype as upper-case rather than using the buttons. (Perhaps asking the user "do you want to put it in uppercase"). This is not exactly hard to code, e.g. if (toUpper(originalField) == editedField) assumeUserWantsUppercase();