The quick way :
- open and edit $:/core/ui/MoreSideBar/Tags tiddler
- add "$:/tags/SideBar" as a tag
- add a "list-after" or "list-before" field to define tab position relative to others.
You can refine this. Create your own "tags list" tiddler and refer to this doc to include it in sidebar : https://tiddlywiki.com/#How%20to%20add%20a%20new%20tab%20to%20the%20sidebar
If your point is "how to make a tags list", please give more context and goals. What tags do you want in the list? How will they be displayed? And so on.
Regards
Sylvain
@sycom
Cheers
Sylvain
@sycom
https://tobibeer.github.io/tb5/#Tags%20In%20Main%20Sidebar%20Tabs