Removing the Google Calendar Button from Appointment Confirmation

Is there a way to remove the google button from the [app_confirmation] page but KEEP it in the [app_my_appointments gcal="1"] ?

I don't want a pop up obscuring the cart payment process and people adding Appointments to google calendar in a new tab/window before they have been paid for.

The flow as it is opens up a page over the order form before the pay button appears which is a guarantee for missed payments and accidental abandonment.

If [app_my_appointments gcal="1"] is set, then it should be able to show the google calendar button when they view their booked paid for appointments.. Which can be embedded in the Thank You page.

Help please?