THIS IS OUTDATED TUTORIAL. PLEASE, USE OUT NEW TUTORIAL ABOUT DIRECTORY SITES ON WOOCOMMERCE
Many of customers ask me to create specification functions. So I made this. When you add all data for criteria you can easily add specification of product on your page by shortcode:
[wpsm_specification]
This shortcode shows specification of current post. Also, you can show specification for any post by shortcode:
[wpsm_specification id="34"]
Also, you can easy add this shortcode by button in text editor:
To show specification of Woocommerce product, use
[wpsm_specification product_id="34" title="Title of specification"]