Just what I was looking for, you are a lifesaver

I am on the WooCommerce 2.6 and WordPress 4.5.2 and this works perfectly. Just for anyone looking for a solution like me, I followed [Link redacted] tutorials for creating fields like these, they work but with a custom build like mine with ElasticPress and custom filtering going on, they were soooo slow for backend searches with 100k+ products. Comparing the above plugin’s select2 vs woocommerce’s builtin one, the above outperforms woo’s by nearly 6 seconds 99% of the time. Thank you again for a great job!