Dialog box to change macro values

[Biggleslad]

Would anyone have a small macro Dialog box script to prompt an administrator for a prompt value that changes the value in the macro?

For example, over 700 Impromptu reports are run from a Macro, and the period and Year are passed from the macro to the Impromptu filter prompt.These reports need to be run for different years and periods as a batch on demand, sometimes everal times a day, so the value in the macro needs to be prompted by a Dialog box.

Thanks in advance.