At this time, SLP Toolkit is designed to only house one caseload. We have already noted this as an option we would like to add in future development, but we're just not there quite yet.
In the meantime, you can sort your caseload by any of the headers at the top. So if you'd like to use one of the existing fields to enter in this info, you can click on that header field to re-sort your caseload.
You can also create special 'tags' in the Caseload tab to differentiate students.