jQuery Grid Plugin - jqGrid

Hello,

I'm evaluating jqGrid as a replacement for our own home grown grid solution. So far, it seems great, but there is one piece of functionality that I'm not sure jqGrid supports. We have a filtering UI that's very similar to the filterToolbar option. However, we support some more complex filtering options. One example is a filter that, when clicked, generates ANOTHER grid in a modal. This second grid displays a list of all of the unique options for the column the user is attempting to filter. We often have filters with tens of thousands of options, and each option has a unique set of metadata that we need to present to the user in order for them to make their filtering decision. I know that this sounds bizarre, but it's a workflow that we *must* support and there's no wiggle room.

Is this something jqGrid can do? And if so, can someone point me to an example? I've spent some time looking here. Mostly what I'm struggling with is that I'm finding the API documentation very difficult to navigate and I'm not quite sure exactly where I'd even need to make modifications.

Thanks!