Changing cue number steps

Is there a way to change the default numbering of cues? For example when doing theatre shows I like to use only odd numbers on the first go around. This prevents the stage manager from having to call LX Q 33.355. Renumber the list at the end is not an option because the SM would then have to redo the whole promt script, not going to happen. It would be handy to be able to change the step size for the cue numbers. Right now each step is one whole number, I would like to increse that to two so that the order will be 1,3,5,7,9.
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