How to restore defaults / restart measure numbering when you've made a mess...?

I have read several forum posts about restarting measure numbers. I have a 6 movement work for 4 parts and I began with using the:
"right click on measure,
measure properties,
add to measure number,
enter desired + or - value"

and now I have gone to the simpler method of putting in "Section break". Now some bars are correct for movements whilst others have negative measure numbers counting down to a "0" point and I can't seem to clean it up.

How do I completely reset the measure number and measure properties so that I can start clean and just use "Section Break"?

Thanks in advance.

Aha! just solved it, thinking I will leave this question up though so that others may learn too, I didn't have to reset anything, I just went to the bars with the lowest negative number value, "right-clicked, measure properties, and changed measure value to 0". This rest all the numbering within my section breaks between the scores.