A system is described in which a user interface module presents a user interface having a field set insertion control. In response to actuation of the field set insertion control by a user, the user interface module dynamically inserts one or more sets of input fields into the user interface for receiving input data from the user. As a result, the user need not be forced to utilize forms having static input lists. Dynamic addition of fields may provide a non-limiting way of stylizing a user interface such that the interface may be kept simple and uncluttered.