Add email custom field

[rizaardiyanto1412]

I'm using USP PRO to let user post their content on my site, meanwhile I have PLANNER PRO from you.
The issue is that the email address is stored in a custom field (usp-email).

Is there anyway to get planner pro to send notification emails to that address instead of the post author (which would be me)

But then maybe I can request a future feature, since wordpress often is built on different plugins, and if a notification program (yours) can't read an email address from a custom field, in the post, then it can't handle other plugins.

If a site, like the one i'm building now, is using usp pro (frontend post publish system), that allows everybody to write a post, (and let us preview them, of course, before publishing), then it's necessary to store the visitors mail in a custom field, we can't create a new user for everybody that wants to publish a post.
So implanting a function, (see screenshot), that allows the admin (us) to use a "custom" field to "send to", would be highly appreciated.

[Tempis-swe]

That would be perfekt for me to, since I also use custom fields.