How to trigger call-back procedure when changing cell-name of existing instance?

Hello,

I am developing a PDK containing various components (p-cells with call-back procedures). The designers using it at this moment, are performing the following steps to create large test-layouts, with lots and lots of nearly identical devices:

1. Create a layout with many instances of a PMOS transistor, varying parameters like width, length, gate-drian space, gate-source space, etc.
2. Copy this layout to a new cell
3. Perform a search-and-replace and changing all cell-names from PMOS to NMOS

In an other PDK, this works, all parameters that need an update (like for instance a parameter called Device Info) are updated, but others, like width and length, remain as is. Thus creating a new layout with virtually no effort. So what clearly happens is that a cell-name change triggers the p-cell to update certain parameters.

When they try to do this with my p-cells, it doesn't work. All parameter names are identical (as is in the other PDK), but after the cell-name change the value of all parameters remain teh same. An example:

The parameter called DeviceInfo contains the following for the PMOS: Standard Low Voltage P-Channel MOS Device
After changing the cell-name, it should be updated to: Standard Low Voltage N-Channel MOS Device

However, this update does not happen.

Now is my question: how do I make my devices behave identical to the other PDK?

How do I trigger the call-back procedure to update, if necessary, the parameters of the p-cell?

With kind regards,

Sjoerd