I have the same objective (I think) to auto fill two contact form fields for a logged in user (name, email).
I cannot locate the slider shown in the screencast posted by Adam.
The only option is a query key passed by URL, which as a newbie I don’t quite understand.
Okay, dummy me.
Here’s the answer:
<?php echo do_shortcode('[YOUR_SHORT_CODE_HERE]');?>
Source:
WP Currency Converter
