While the ALMA OT comes loaded with several digitized sky surveys that can be searched for online, you can also load your own image, provided that it is in FITS format with coordinates defined in the ICRS/J2000 or Galactic coordinate systems. To load an image, go to the "Spatial" tab of the "Field Setup" section of your previously created Science Goal, and select the Folder icon at the left of the toolbar above the spatial visual editor. You will be prompted for a FITS file on your local disk to be displayed in the spatial visual editor.