Copying layouts between different cells

Hi all,

I am new to Cadence Virtuoso and I am trying to solve a problem I have with layouts.

I have designed a 8-bit full adder exploiting the inversion property, which requires me to design two slightly different 1-bit adder cells (to be alternated in the carry out series). I have designed the first 1-bit adder cell (both schematic and layout), and now I have to design the second one. To save time, since the two cells are very similar, I simply copied the first cell (FA_1bit_A) and renamed it as FA_1bit_B (I copied all the views: schematic, layut and symbol). Then I modified the schematic by removing a couple of transistors and adding some others, and I tried to perform these simple changes also in the layout view.

At this point, however, I have some problems: I can easlily eliminate the few transistors that I don't need anymore, but when I try to import the additional ones that I need by means of the command "Generate selected from source", I see that this layout view is still tied to the original schematic of the initial 1-bit adder cell. In fact, the command "Generate selected from source" opens a new window called:

"Schematic Editor XL Reading: EDATP FA_1bit_A schematic Config: EDATP FA_1bit_B physConfig"

where EDATP is the name of the library. In this schematic view, I see the original schematic and not the modified one.

I can I solve this issue? I would like to have to completely independent cells, but being able to reuse the layout of the first one.

Thanks in advance!