Sliders for "Divide larger/avoid smaller than"?

 From:  Mark Brown (MABROWN)
3117.1 
Hi Michael,

Any chance that sliders could be added for the "Divide larger/avoid smaller than" options in the export dialog?

I use these a lot to fine tune export of my models for rendering and they work a treat. Would be nice to have sliders.

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Mark
http://www.homepages.ihug.com.au/~mabrown/index.html