Click to change the value for the selected Hardware support option. For non-DSP, a List Selection dialog is displayed and you can select new values as follows:

Data Size      Any, Byte, Half, or Word

Mode            Ignore, Data, or Supervisor

Extern           Ignore, Low, or High

If you are connected to a DSP, there are different tests available under HW Support. For example, there might be a Hardware Pass Count available. In this case, you are prompted to supply a value for the Pass Count when you click Edit Value.