This tutorial show how to group your presentations in your presentations library by tagging them at the time of uploading. This is suitable if you maintain a long list of presentation files and need an easy way to find them.
Already existing items can be assigned different tags (re-grouping them) using the LMS web interface. To do so log into your LMS account and click Management -> Virtual Classrooms.
Click the red options button next to the room and open the room library. Then use the regrouping options to assign new groups/tags to already uploaded files.