Help needed with the new "Tag" element (Solved)

*EDIT*

(For versions under 1.13):

First, type your ore dictionary name in the first box.

(Examples: https://mce626.wixsite.com/odnlist/list)

Secondly, select forge and items.

Lastly, select your items/blocks under this tag.

(Screenshot: https://imgur.com/a/SVJitZl)

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I don't understand the new tag element, can somebody please send a screenshot as an example?

(for example, if you want to add your new block to the LogWood category in 1.12.2)

Thanks in advance.