Craft Edge

Hello I have a question about the Lib it up program. I can download and get my files into the SCAL library just fine but I can not figure out how to add additional files to the catagorys that I have already created. EX. I have a "bags" section and if I want to add additional bags at a later time I have been having to create another "bags" section instead of being able to add to the original one. Any suggestions? Thanks in advance.