Customise the Processes Module

Is it possible to customise the Process module?  I can't find the Process module in Studio.

We have many processes that need to be screened for approval/deny and it would be efficient to do so from the list view, rather than having to open each process record.  If we could have the list view (or the preview panel) display key info from the record (Leads record) and have the approve/deny button on the list view / preview panel, it would be very convenient.