This is something we’re actively looking into but there are a few edge cases to work out. The support scaffolding algorithms have evolved considerably over the years and slight changes to geometry could require significant changes in support placement. The tricky question becomes determining what magnitude of geometry change is acceptable for the same orientation and support placement. One potential solution to this is to allow users to use the same orientation and support placement, removing supports on areas that have additional geometry or areas that no longer exist. From there, the printability checker could determine if the support scaffolding is sufficient for the current part, highlighting any problem areas in red.