How to add a box to the template and add new sheet corresponding to new box? (Draftsight)

The model you see has 8 boxes in the model space. This template was created by someone within the company. I can't figure out how to add another box to the existing template set and then a sheet associated with new box in the model space. Apologize if I am misusing terminology.

Any help would be great. Thanks.

SolidworksGeneral