By selecting Reset Model you are instructing Impact to bring the design back to the size prior to selecting Update Model.
Impact Licensing – Service Update
Throughout today (Dec 2nd), our licensing service provider, Nalpeiron, experienced several outages caused by issues at their hosting provider, Azure. Nalpeiron has confirmed that full service has now been restored, they do not expect further disruption, and they are implementing additional safeguards to mitigate similar issues in the future.
By selecting Reset Model you are instructing Impact to bring the design back to the size prior to selecting Update Model.