Ability to Add Calculated Metrics to Success Event Conversion Funnels

[#1]

Currently, you cannot add Calcualted Metrics to Conversion Funnels and there are times when this is needed (i.e. Cart Adds-Cart Removes).

[#2]

I would use calculated metrics that are metrics with segment filters applied.  This is definitely different than applying a filter to a whole funnel.  It lets you fine tune the funnel to a much fuller extent.

Ratios wouldn't fit.