How to attach several files in a web form and send links to them by mail?

Question

1C-Bitrix

There is a standard Bitrix web form with the File field. Required to be able to add multiple files to this field. Well, I seem to have added the multiple="multiple" parameter to the field's Response in the cell. And yes, you can now attach multiple files to the box. But of course it's not that simple. Only one file comes to the mail and to the admin panel.
Tell me how to fix this?