Field Type - Hidden

You can use the Hidden field to hide certain values or content in the form and fetch it only when required.
  1. To add a Hidden field to the form, under Form builder, click (Add) icon in the command bar.
  2. In the Field properties window, enter/select the field information as shown here.
  3. To fetch hidden data, add the Button field and define the relevant hook.
  4. Add a Text box field.
  5. To see the field added to the form, click (View) icon.
  6. In the form preview, click Get Hidden value.
    Hidden value is displayed.