FTP user on subdomain creation-option

Currently in cPanel, when you add an Addon domain you have the possibility to select "Create an FTP account associated with this Addon Domain." Which is nice.

But I've had multiple customers that have asked that this feature also gets added to the creation of subdomains, sometimes they want to limit the access for this specific subdomain with an FTP account, so if the option was already there - and setting the path accordingly, it would be a time-saver (Also because people can mistype when they go create a FTP folder).

I don't know how easy this is to implement, but I have the assumption, it's basically copy/pasting the functionality from the "Addon domains" part, since it's very much related (digging around in the code).