Do you mean that you would only want to see CRC errors in the NPM web? If so, here is a Cisco CRC Errors. From the information you have provided you are dropping inbound packets due to buffer failures. Buffer misses are normal and just mean that a packet had to be handeled by a secondary buffer, but failures = drops. You can use show buffers to see which pools are dropping and allocate more space in them.
So the value seen in the Web page as Received Errors or Transmit errors is the sum of all errors (CRCs, overrun, frames and buffer misses) right ?
The only way to see CRCs errors is to declare an Universal poller and to assign to all interfaces ?
Many thanks for your answers..