Stripe and Paymill insert their button and can not be changed. To change the text of any of the other payment buttons you can place this code snippet into {{#fas:cog}} (SETTINGS) BOOKING ENGINE > PROPERTY BOOKING PAGE > DEVELOPER "Advanced HTML Settings".
Custom Instruction: <code> <script type="text/javascript">
$(document).ready(function() { $("#buttoncustominstruction").val("the new text"); });
</script></code>
Authorize.Net: <code><script type="text/javascript">
$(document).ready(function() { $("#buttonauthorizenet").val("the new text"); });
</script></code>
Paypal <code><script type="text/javascript">
$(document).ready(function() { $("#buttonpaypal").val("the new text"); });
</script></code>
[[:category:Developers |Here]] you can find more developer options.