Multiplayer form clear data

Hi Max. How can I clear form data in the first page of multiplayer form?
I'm using chronoform 6.1.2
​
Thanks for your help

Unless you have some way of determining which data is from the first page and which from other pages, you can't. Otherwise {session.clear:multipage.field1} {session.clear:multipage.field2} etc should work

How/when do you want to clear the data ?
​
Best regards

Hello, please explain how to clear data.
I've got php custom code which gets values from url parameters into fields with this code:
$value = $this->data("open_days", 0);
if ($value) {
return $value;
}
if user do not terminate to fill the form and reload the form or open a form from another page, "open_days" data still remain in {data:}
I would like to clear the data if user open another form from another page or with other url parameters.
​

Array
(
    [Itemid] => 1558
    [option] => com_content
    [view] => article
    [id] => 233
    [type_of_request] => request
    [service_type] => excursion_group
    [unit_price] => 1
    [prepayment_percent] => 100
    [vehicle_type] => sedan
    [open_days] => 2,4,6
    [open_hours] => 12,15,18
    [fcba6eff3bcff11268aeb9d73ebac6b2] => 225ee166974dce84080f9c3d28038fa9
    [joomsef_lang] => ru
    [_ga] => GA1.2.2146140801.1610117828
    [_gid] => GA1.2.19685526.1610117828
    [_gat] => 1

the data is stored in the session, it's cleared when the last page is reached, but you may try this code:

$this->data("", [], true);