That isn’t, as far as I know, a feature of the software (but I’m not an expert in that area), but the software (emonCMS) will record the power at 10 s intervals, so you should see not only the peak, but the full usage pattern too.
The limiting factor will almost certainly be the size of your service entrance wires - the “standard” c.t. can only accept a cable less than ½" diameter. This is well worth reading: