Hi. We can't, because I don't know how we can help if you don't understand
how to use filters. You will not have any possibility to fill and support
your site if you can't understand how to use it.

I recommend to use woocommerce as we plan to add special product layouts
for Directory sites and tutorials. THis will be in nearest updates in 3-7
days, so, I recommend to wait

So, you didn't see our video, because you don't know where to set specifications. 

https://youtu.be/_1KYXN8Rv1A?t=33m14s

As I wrote, you can create several specifications for each category and several layout tabs. Each layout tab can be assigned to own category of posts.

If you want to save your time - recreate your site using woocommerce instead of posts. This is more easy to use for sites with different categories and more easy to fill all products. See my previous message. Product will have another look, but maybe even better

https://drive.google.com/open?id=1wOD2TlSk49wpmITiiyR_ksBcq0RKkxuI

can you please see my recording again, hope you will get this time what i am really after

video doesn;t show anything about your problem. Which categories and where you created? why you can't add MDTF categories to post? Each post has MDTF panel where you can choose filters https://www.screencast.com/t/Hn0vwui6i

If you want to show different specifications for different categories, you must create different specifications for each category. Then, you can assign to own category https://www.screencast.com/t/asTque0hDo

If you think that it's too complex for you, I recommend to use Woocommerce instead. You will not need MDTF, specification plugin, tabs, etc, as everything is created inside woocommerce attributes. See next https://docs.woocommerce.com/document/managing-product-taxonomies/

http://rehubdocs.wpsoul.com/docs/rehub-theme/advanced-tips-and-customizations/how-to-use-woocommerce-as-catalog-and-directory/

I have created MDTF categories for Hosting / Email marketing / page builder and many other but i am not able to add these categories to my post. Default MDTF category renamed to VPN and only this VPN category on every post.

All i want is to add these new categories under specification section for every post I am creating. whenever i create a new post all the post picking previous VPN Features. If you see my recording even if I create a post under web hosting still its picking VPN features. I want to have a separate feature for every MTDF category and post

See recording here. 

https://www.useloom.com/share/e451d39836484fff8a9c0470dd672032

It's not clear what you mean. Page builder doesn't have specification feature. 

Can you please create Specification under Page builder and Email marketing and screen record while doing so that I can follow the steps. 

Check description of video on youtube, it has table of contents. Copy link from it and insert in browser 

If you can please highlight the time on the vide (Ex - Start at 1:01:01 ) where is the part of this MTDF filter setting up

Did you check our video explanation in end of article?

http://rehubdocs.wpsoul.com/docs/rehub-theme/filtered-directory-specifications/installing-and-setting/

Still need help setting up MTDF filer, gone through the video, tried but could not figure out. Could you please assist me with this. is there any short video to understand only for MDTF category and Filters?