Forms - Static text before single line text field

Having the ability to insert static text that can go before a single line field on a form would greatly help with field uniformity on the backend.

Example: Currently we can only write in the description how we’d like the end user to format the single line text. “Please format as SO0******”.
Would like to have a static “SO0” and the end user enters the remaining 6 digits (ex. 123456) on the form. On the backend the form sends the field as filled out as “SO0123456”.