In cadence virtuoso when i want to copy there are two option for updating Cell Instances. 1.Of Entire Library 2. Of New Copies Only
I do not understand what is the difference between this two option?
1. Of Entire Library means your updating (changes) affect not only the cell instance which you currently change, but also all the cell instanceswith the same name, i.e. your changes will be reflected into the Cell Library.
2. Of New Copies Only means only the copied cell instance which you are currently updating (changing) is concerned - all other cell instances and the original from the Cell Library will not be changed.