The Block Name Scheme tab lists all stack blocks with conflicting naming schemes. The following naming schemes exist:
Internal host name, such as B2R2C1
UI position name, such as B2R2C1.T1
You can update either the internal label format or the user label format, whichever is applicable. If you update the internal host name scheme, N4 regenerates all stack names automatically for that block according to the new naming scheme. Changes in the UI position scheme do not cause N4 to regenerate names.