Does anybody know how to predefined date?
For example I have an event that already have a fixed arrival and departure date, so I want to fixed the date rather than the customer have to choose the date.

Thank you so much.

peace and smile,
Br. Dharmaputra

Dear Dharmaputra,

Currently there is no way to do that directly. However, as a workaround, you can add a text field instead, type in your desired value, and from the menu open the Edit Javascript window, and change the function before_submit like so:

function before_submit(){
   document.getElementById('your_field_id').disabled=true;
}