The reason you will find it difficult to reorder these tags is at least two reasons;
- Tags by default, if dragged contain the list of tiddlers they tag, that is a “tag pill” can be dragged and dropped on another wiki and all the tiddlers it tags will be dropped. The drag mechanism does this not the order of tags.
- There is no intrinsic order to the tags, this list is alphanumeric because there is perhaps no other useful way to sort them.
Perhaps this depends on why you want to do this?
Are you trying to "force an order on all users of the wiki, or just for your own convenience?
- I have different answers to these questions if I knew your answer/
The same can be asked for this question you asked How do you hide a tag on the tag manager tab?
Are you trying to "hide tags for all users of the wiki, or just for your own convenience?
I have explored giving you a good answer and I think it best I wait for your answer!