I have the appointup plugin installed and did not want to use Paypal. I choose the cash option and when the appointment is booked he page reloads and above the form I get the message "Your appointment has been booked successfully. You have to pay the amount of 50USD at the time of appointment. Thanks". 1. Is there a way to change that message to a custom message I want to use? 2. Is there a way to change the location of the message so it shows in the form section and not above it? 3. If no to question 2 can the text color be changed so it stands out more? 4. Is there a way to add stripe as an option? 5. Is it possible for the transaction to complete without the page reloading and display the confirmation message under the form?