Setting fields to required (compulsory) is a good feature but it could offer more benefits by expanding this functionallity to capture information at a later stage in the pipeline that you wouldn't have before a quote is confirmed.
If you could specify 'Required at specific pipeline stages' on a field, then you could make fields not required at quote stage but required at confirmation stage.
Probably best if this is a checkbox against the stage list because it wouldn't be possible to define 'from' a specific pipeline stage as it would be difficult to know if people have reordered the pipeline stages
