Modify modbus polling rate

Hi there,
Is there a way to customize the pooling rate of a modbus device from ignition config ? If so, can we customize for one tag at a time or all together ?
Thank you for your help.

The rate of the Scan Class / Tag Group the tags belong to dictate the sampling interval that we ask the OPC UA server to use.

Where can we create or modify the Tag Groups please ?

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Thank you Kevin.