1. A computer program product for customizing a parameter value in a software program, the computer program product comprising: one or more computer readable storage media, program instructions stored on the one or more computer readable storage media, the program instructions comprising: program instructions to receive one integrated input to change an original value of a parameter in a software program to a new value of the parameter, wherein the one integrated input also defines a persistence level of the new value of the parameter; and program instructions to change the original value of the parameter to the new value of the parameter based on the one integrated input, and to set the persistence level of the new value based on the one integrated input.