% Load a new requirements set file and select one requirement
rs = slreq.load('C:\MATLAB\My_Requirements_Set_1.slreqx');
allReqs = find(rs, 'Type', 'Requirement');
req = allReqs(1);

% Query which requirements set req belongs to
reqSet(req)

ans = 

  ReqSet with properties:

             Description: ''
                    Name: 'My_Requirements_Set_1'
                Filename: 'C:\MATLAB\My_Requirements_Set_1.slreqx'
                Revision: 63
                   Dirty: 0
    CustomAttributeNames: {}
               CreatedBy: 'Jane Doe'
               CreatedOn: 27-Feb-2017 10:20:39
              ModifiedBy: 'John Doe'
              ModifiedOn: 08-Mar-2017 09:27:31