How to encapsulate a group of shapes into a pcell

You just said that it can't be built by a normal pcell and it's built by hand or a custom tool - so I'm a bit confused as to why you want to make it a pcell?

Wouldn't it be sufficient to create a cell for your custom capacitor layout containing all the shapes for the capacitor, and provided that you have pins for the connections to the capacitor, Virtuoso Layout Suite XL will be able to handle it. If you don't have a layout for the symbol used in the schematic, you can always launch CPH (Configure Physical Hierarchy) in VLS XL to set the physical lib/cell/view to be somewhere else - that will then allow you to map it to your custom layout cell.

Andrew

For 100 mos devices i have one mos pcell.

For 20 custom capacitors devices I wish I had one special pcell, instead of 20 custom cells. This is my question about availability of encapsulation tool/function. 

I developed a special pcell in my environment, but is too complex. 

This is why I opened this topic here to see if anyone has an easier solution.

You are right, it is possible to create a cell for any custom capacitor, this is the hard approach.

Thank you for CPH suggestion, I was not aware about this tool.

It all rather depends on how you expect to switch between them - what would control the different sets of custom geometries? You could have something that had a parameter and then instantiated one of the 20 custom cells, potentially flattening one level so that you didn't need to copy pins up one level). Without more details, it's hard to advise what the best approach would be.

Andrew