title: Can we have an array of custom modules?
body: <p>Can we have an array of instances for a custom module?</p>
  
  <p>For example: we can have <code>input [15:0] a;</code> - this creates a bus. Can we do same thing for custom modules, i.e. <code>DFF [15:0] d;</code>, where DFF is a custom module?
  Here I intend to create 16 instances of the DFF module.</p>