Although SoftMax Pro allows you to have multiple experiments, the XML output (for v6) only has one Experiment. That means that if you have a plate with the same name in multiple experiments, there's no easy way to differentiate them in the XML file (and the Plate column will have the same value for the two).
Since no experiment information (e.g., Name) is included in the XML output, the only way may be to change the name of the plate. Something like Plate1.a and Plate1.b might work.
Although SoftMax Pro allows you to have multiple experiments, the XML output (for v6) only has one Experiment. That means that if you have a plate with the same name in multiple experiments, there's no easy way to differentiate them in the XML file (and the Plate column will have the same value for the two).
Since no experiment information (e.g., Name) is included in the XML output, the only way may be to change the name of the plate. Something like Plate1.a and Plate1.b might work.