If you have files in Dropbox you can add them to branches or task cards in MindGenius Online by clicking "Add Attachment" -> "Dropbox" on the attachment section either by selecting the branch in the map view and expanding the Properties Side Panel 
from the upper right corner and selecting , or opening the Task Card in the Task or Timeline views.
When you click the dropbox icon a dialog window will display to allow you to sign into Dropbox using your Dropbox credentials
Once you sign into your account you will be presented with a list of available documents. Simply click to select the document you want to add to MindGenius Online and select "Choose"
