It's easy to automatically fill out your signature and WDI credentials here!:
From the Profile page first ensure your "State" field is either "TX" or "Texas" and hit "Save".
Click into your inspector profile by clicking the inspector's name/image.
Fill out the "TX WDI License Number" field and add a signature image:
That's it! Now your signature and WDI license number will appear on every WDI report you do!