powerpress add upload to metabox

powerpressadmin-metabox.php

<!-- custom upload button -->
<button id="custom_uploader">upload mp3</button>
<script>
	$( "#custom_uploader" ).click( function() {
		const send_attachment_bkp = wp.media.editor.send.attachment;
		const button = $(this);
		wp.media.editor.send.attachment = function( props, attachment ) {
			$( button ).parent().prev().attr( "src", attachment.url );
			$( button ).prev().val( attachment.id );
			wp.media.editor.send.attachment = send_attachment_bkp;
			$( "#powerpress_url_podcast" ).val( attachment.url );
			setTimeout( function(){
				$( "#powerpress_check_podcast_button" ).trigger( "click" );
			}, 1 );
		}
		wp.media.editor.open( button );
		return false;
	});
</script>

Add around line 206 on powerpressadmin-metabox.php

Auto fills in the url and submits the verify url for you.