1. A computer-implemented method in which a computer system initiates execution of software instructions stored in memory for editing a form calculation, the computer-implemented method comprising: displaying a hyperlink for an element in the form calculation, the form calculation being a database query and the form calculation including a mathematical formula, displaying the hyperlink to indicate to a user that a control is available for the element, the hyperlink including at least one hyperlink target, the hyperlink target identified by a link to a choice satisfying the element on the form calculation, the hyperlink providing one of the group consisting of (i) a link from the form calculation to another location, wherein the another location is identified by a reference to valid variables in the hyperlink target and (ii) a link from the form calculation to another file, wherein the another file is identified by a reference to a selection of choices in the hyperlink target; upon a selection of the hyperlink by the user, presenting the control for user interaction, the control displaying a list of choices satisfying the element in the form calculation; receiving a selection from the list of choices; and upon completion of user interaction with the control and in response to receiving the selection, replacing the element with a new element corresponding to the selection, displaying the hyperlink for the new element in the form calculation, and causing the presented control to disappear.