Replace "insert function" with "edit formula" button in fourmula b
 

I had this as an equal sign in old version. IS came around and "upgraded" me,
now I have an fx in lieu of "equal sign". I liked it the old way, it allowed
me to take a piece of data (number) and make it into a formula (it would
automatically add equal sign and put cursor at back of number for continued
typing). Please advise.