Sometimes we need to reconcile changes on an object between two orgs, where some of the changes have been made in Org1 and some in Org2. Having set up metadata filters, compared and deployed required changes from Org1 to Org2, it would be nice to be able click a button to switch direction to then deploy required changes from Org2 back to Org1, without having to go through the whole process of setting up a new comparison.