This outlines the different ways of setting the field behaviour in the Quest List Form
Title
Quest Development Studio for SharePoint – Display Fields Settings in the List FormDescription
Resolution
Document location,
http://usdownloads.quest.com.edgesuite.net/Repository/support.quest.com/Development%20Studio%20for%20SharePoint/4.1/Documentation/Module17%20Display%20Fields%20Settings%20in%20the%20List%20Form.pdf
Video location,
https://support.quest.com/SUPPORT/index?page=downloadsentitlement&file=2403616