It's video for posts. Use WCFM plugin, it has inner frontend forms with
support for custom fields. I don't know why you need RH frontend for
products. Explain please

https://wordpress.org/plugins/wc-multivendor-marketplace/

https://wpsoul.com/how-to-create-multi-vendor-shop-on-wordpress/

if you can make a short video for me how I can make this 

Thanks

https://www.youtube.com/watch?v=b76Zc0G2Bw0

in this video he added product from page (contain code RH frontent code)

Hello Igor,

I want to control with vendor dashboard just view (add a product, change a password, change image )and when to click on add a product I want to show inputs I added in RH frontend plugin.

https://wpsoul.com/directory-review-classified-on-woocommerce/#user-frontend-submit

And you don't need Rh frontend if you use WCFM, Dokan or WC marketplace plugins. Use them 

what is the plugin?

Hello Sizam,

I want to add a product from vendor dashboard when I added a lot of inputs https://prnt.sc/n3pz2t

if you fill all inputs it does not show all data when previewing so what's the problem

Thank you