When you access Schedule Master from your iPad or other iOS device, and attempt to attach files to a Group e-Mail, clicking the "Choose File" button on the Group e-Mail form brings up the following dialog:
This is expected behavior with Apple iOS devices, and does not indicate a problem with Schedule Master.
Apple iOS does not employ the concept of a user-accesible file system. So there is not a "My Documents" folder where you can browse for and attach files. This is by design with iOS, as it is designed to isolate the user from the file system, and leave the management of files to the various applications that need to create files. iOS only provides a way to browse for photos in the camera roll or by taking a photograph with the device's camera. While taking a photo of a document may actually produce acceptable results, beware that the size of the image will likely be larger than Schedule Master's fie upload limits.