sequential activation of buttons

[Anastasiia]

Hello, please tell me. How to make sequential activation of buttons?
There are 2 buttons Contact form and Download file
The first button "Contact form" when the client goes to it the button Download file is not active, and only after filling out the form, the button "Download file" becomes active and allows you to download the file.

What function should be written in events and actions to get this scheme?
Please take me step by step what needs to be done.
Thank you

[Pablo]

There is no standard solution for this in HTML. You will need to implement a custom script for this.
However, any script that works elsewhere will also work in WWB.

[wwonderfull]

As it would need custom codes for solution although totally possible but maybe you could just redirect the user to success page where the download button can be shown and after submitting data, they can download the file.

Although not the actual way you want it but still does the purpose.