Once you have connected to Google Docs and have your GetAccept > Documents and Templates folders in your Drive, you can start adding the files you want to use as templates. You can use Documents, Sheets, or Slides.
To do so, go into your Templates folder, click the New button in the top left and choose File Upload. Upload the file you want to use and once it is finished uploading, right click it and choose Open With Google Docs. This will convert your original file into a Google Doc.
Now that you have your Google Doc in your Templates folder, you can delete the original Word document that you originally uploaded.
Go back into GetAccept and go into Templates. Click the Sync Google Docs Templates button and you will see your template appear! If you uploaded more than one file into your Templates folder, you will need to click the Sync button multiple times, as it refreshes and loads the templates one at a time.
Now you can either inline edit your Google Docs template or finish creating your template by adding fields, attachments, or a video as you normally would.