Teachers need a way to add multiple files to a lesson. Right now you are only able to import one file at a time. If teachers want to import a Google Slides deck or a PowerPoint and then add a PDF they are not able to because once one file has been imported the only option to add additional items are to add an additional page, a SMART Lab activity, YouTube video, etc. There is currently no way to add an external file again. Many of the teachers I work with have presentations and PDFs they would like to combine to use with SMART's interactive tools. This would help so much and making things easier for our teachers.