1. An apparatus comprising: memory storing user fingerprint information, the user fingerprint information comprising at least two fingerprint identifiers each serving to identify a fingerprint of the user, each of the fingerprint identifiers being associated with a function of the apparatus; a user input device configured to detecting a multi-fingerprint input, the multi-fingerprint input comprising at least two data inputs by a user, each of the two data inputs conforming to one of the fingerprint identifiers memory storing computer program code; a processor; the memory and the computer program code configured to, with the processor, cause the apparatus to: associate each of the data inputs comprising the multi-fingerprint input with a corresponding one of the fingerprint identifiers; in response to the association of the data inputs with the fingerprint identifiers, determine a function associated with each of the data inputs; evaluate whether two or more of the functions can be combined; if two or more of the functions can be combined, construct a combination function associated with the multi-fingerprint input and comprising the functions associated with at least two of the data inputs, at least one of the functions serving to modify the operation of at least one of the other functions; and enable access to the combination function.