Once you have started a PASS Section and completed the PSI required documentation for the current period you should navigate back to the PASS tab. There you should see a little cloud icon on the bottom of the corresponding section you have downloaded, like so:
When you click on this a little window will appear asking you to insert your compliance level in a dropbox and a large area for you to upload the file. All files should be less than 20MB. You can either drag and drop the file from your folder onto this window or click on the window and direct the app to file that way.
Once the file is loaded onto the window click the green Done button on the bottom of the window and it will automatically upload the document and close that section for you.