photo caption table for attachments to current post

I checked your code and it doesn’t look like you have this feature, but it’s easy to add. You can use my code here as a starting point if you like.

remove_shortcode( 'credit_tracker_table' );
	add_shortcode( 'credit_tracker_table', 'my_credit_tracker_table_shortcode' ) );

	function my_credit_tracker_table_shortcode( $atts ) {
		extract( shortcode_atts( array(
			 'attachments' => false
		), $atts ) );
		if ( $attachments ) {
			global $post;
			$attachments    = get_attached_media( 'image' );
			$attachment_ids = array();
			foreach ( $attachments as $attachment ) {
				$attachment_ids[] = $attachment->ID;
			} //$attachments as $attachment
			$attachment_ids = implode( ',', $attachment_ids );
			$atts[ 'id' ]   = $attachment_ids;

		} //$attachments
		return ( credit_tracker_table_shortcode( $atts ) );
	}

So now the shortcode can be [credit_tracker_table attachments=true] and it’ll only output the credit table for attachments of the current post. Works within a post, page or even in the sidebar. Anybody can use this in the meantime if you want this functionality now. Just add it to your theme’s functions.php or in a custom plugin ideally.