Sometimes it is useful to import an existing diagram into the current diagram.  The sequence below gives simple example of this.

We start with a diagram.  This one is using the Google Drive storage option, but importing is handled the same way for all storage options.


We would like to import another diagram into this one, so that we can combine the elements of both. In this case the diagram we are importing is very simple - it only contains one element.


The diagram we are importing is stored on Device, so we select File -> Import from -> Device




We then locate the file in the file browser, and click Open. 

This imports the second file into the first, resulting in this:

We can then use the new element.  In this case we did not save any time importing such a small diagram, but importing can be helpful when merging or combining two large or complex diagrams.