This is Meta Repeater plugin. Its used to create dynamic meta fields for post and custom post types.
1. Install Plugin
2. Select post types
3. It has three types of inputs types
There are:
1. Text
2. URL and
3. Text area
1. Display meta `<?php the_wpmr_field( 'key_name' ); ?>`
2. Get individual meta `<?php echo get_wpmr_field( 'post_id', 'key_name' ); ?>`
3. Display meta repeater `<?php the_wpmr_repeater(); ?>`
4. Get individual meta `<?php echo get_wpmr_repeater( 'post_id' ); ?>`