Hi @simeoned,
Thanks for reaching out.
That would require custom coding as the theme only provides post meta for known post types (standard post type and post type that came with it). Though, you can implement is similar to existing code from x_integrity_entry_meta() like this
if ( get_post_type() == 'x-portfolio' ) {
if ( has_term( '', 'portfolio-category', NULL ) ) {
$categories = get_the_terms( get_the_ID(), 'portfolio-category' );
$separator = ', ';
$categories_output = '';
foreach ( $categories as $category ) {
$categories_output .= '<a href="'
. get_term_link( $category->slug, 'portfolio-category' )
. '" title="'
. esc_attr( sprintf( __( "View all posts in: “%s”", '__x__' ), $category->name ) )
. '"><i class="x-icon-bookmark" data-x-icon-s=""></i> '
. $category->name
. '</a>'
. $separator;
}
$categories_list = sprintf( '<span>%s</span>',
trim( $categories_output, $separator )
);
} else {
$categories_list = '';
}
}
to something like this
if ( get_post_type() == 'pwc' ) {
if ( has_term( '', 'pwc_category', NULL ) ) {
$categories = get_the_terms( get_the_ID(), 'pwc_category' );
$separator = ', ';
$categories_output = '';
foreach ( $categories as $category ) {
$categories_output .= '<a href="'
. get_term_link( $category->slug, 'pwc_category' )
. '" title="'
. esc_attr( sprintf( __( "View all posts in: “%s”", '__x__' ), $category->name ) )
. '"><i class="x-icon-bookmark" data-x-icon-s=""></i> '
. $category->name
. '</a>'
. $separator;
}
$categories_list = sprintf( '<span>%s</span>',
trim( $categories_output, $separator )
);
} else {
$categories_list = '';
}
}
And this would be the complete code,
function x_integrity_entry_meta() {
//
// Author.
//
$author = sprintf( '<span><i class="x-icon-pencil" data-x-icon-s=""></i> %s</span>',
get_the_author()
);
//
// Date.
//
$date = sprintf( '<span><time class="entry-date" datetime="%1$s"><i class="x-icon-calendar" data-x-icon-s=""></i> %2$s</time></span>',
esc_attr( get_the_date( 'c' ) ),
esc_html( get_the_date() )
);
//
// Categories.
//
if ( get_post_type() == 'x-portfolio' ) {
if ( has_term( '', 'portfolio-category', NULL ) ) {
$categories = get_the_terms( get_the_ID(), 'portfolio-category' );
$separator = ', ';
$categories_output = '';
foreach ( $categories as $category ) {
$categories_output .= '<a href="'
. get_term_link( $category->slug, 'portfolio-category' )
. '" title="'
. esc_attr( sprintf( __( "View all posts in: “%s”", '__x__' ), $category->name ) )
. '"><i class="x-icon-bookmark" data-x-icon-s=""></i> '
. $category->name
. '</a>'
. $separator;
}
$categories_list = sprintf( '<span>%s</span>',
trim( $categories_output, $separator )
);
} else {
$categories_list = '';
}
} else if ( get_post_type() == 'pwc' ) {
if ( has_term( '', 'pwc_category', NULL ) ) {
$categories = get_the_terms( get_the_ID(), 'pwc_category' );
$separator = ', ';
$categories_output = '';
foreach ( $categories as $category ) {
$categories_output .= '<a href="'
. get_term_link( $category->slug, 'pwc_category' )
. '" title="'
. esc_attr( sprintf( __( "View all posts in: “%s”", '__x__' ), $category->name ) )
. '"><i class="x-icon-bookmark" data-x-icon-s=""></i> '
. $category->name
. '</a>'
. $separator;
}
$categories_list = sprintf( '<span>%s</span>',
trim( $categories_output, $separator )
);
} else {
$categories_list = '';
}
} else {
$categories = get_the_category();
$separator = ', ';
$categories_output = '';
foreach ( $categories as $category ) {
$categories_output .= '<a href="'
. get_category_link( $category->term_id )
. '" title="'
. esc_attr( sprintf( __( "View all posts in: “%s”", '__x__' ), $category->name ) )
. '"><i class="x-icon-bookmark" data-x-icon-s=""></i> '
. $category->name
. '</a>'
. $separator;
}
$categories_list = sprintf( '<span>%s</span>',
trim( $categories_output, $separator )
);
}
//
// Comments link.
//
if ( comments_open() ) {
$title = apply_filters( 'x_entry_meta_comments_title', get_the_title() );
$link = apply_filters( 'x_entry_meta_comments_link', get_comments_link() );
$number = apply_filters( 'x_entry_meta_comments_number', get_comments_number() );
$text = ( 0 == $number ) ? __( 'Leave a Comment', '__x__' ) : sprintf( _n( '%s Comment', '%s Comments', $number, '__x__' ), $number );
$comments = sprintf( '<span><a href="%1$s" title="%2$s" class="meta-comments"><i class="x-icon-comments" data-x-icon-s=""></i> %3$s</a></span>',
esc_url( $link ),
esc_attr( sprintf( __( 'Leave a comment on: “%s”', '__x__' ), $title ) ),
$text
);
} else {
$comments = '';
}
//
// Output.
//
if ( x_does_not_need_entry_meta() ) {
return;
} else {
printf( '<p class="p-meta">%1$s%2$s%3$s%4$s</p>',
$author,
$date,
$categories_list,
$comments
);
}
}
This snippet should only serve as a guide or idea of how it can be done, but we don’t maintain or provide support to any custom code like this. Any changes or enhancement should be forwarded to your developer 
Thanks!