Jeff Starr on "[Plugin: User Submitted Posts] Theme Specific Field"

Hi..Great to come across this plugin and would like to know how can we add a theme specific field to the front-end form..For example, my theme has got a field called Video URL on the Add New Post interface..Thanks and Regards..

https://wordpress.org/plugins/user-submitted-posts/

The free version of USP is pretty much fixed in terms of fields, but the Pro version can be used to create unlimited forms that include fields of any type.

The thing to find out from your theme is whether or not the "Video URL" is associated with a specific Custom Field. If so, then USP Pro can be used to submit posts that populate the Video URL field, as well as any other fields that may be necessary.