load(
  local!a,
  local!b,
  local!text1,
  local!text2,
  a!formLayout(
    firstColumnContents: {
      a!textField(
        label: "Conditionally Required",
        required: true,
        requiredMessage: "This field is required because you clicked Button A!",
        validationGroup: "buttonA",
        validations:if(len(local!text1)>1,"Too Many Characters",{}),
        value: local!text1,
        saveInto: local!text1
      ),
      a!buttonLayout(
        primaryButtons: {
          a!buttonWidget(
            label: "Button A",
            validate: true,
            validationGroup: "buttonA",
            value: "Button A!",
            saveInto: local!a
          ),
          a!buttonWidget(
            label: "Button B",
            validate: true,
            value: "Button B!",
            saveInto: local!b
          )
        }
      )
    }
  )
)