Sorry, I forgot you had the other questions at the end after I started typing.
The link you provided is toTiddlyWiki classic, so that does not apply to TiddlyWiki5
There are ways to host TiddlyWikis online so that you can edit them. But I think that having it both ways (hiding editing controls AND editing online) is not an ideal route. More ideal would be having your editable version, on or offline, with the controls visible, in a separate location, then have a way to update the user friendly version from that.
Another way is via GitHub, so you edit the tiddlers in Github but viewers only see the finished product
On Friday, May 25, 2018 at 5:38:21 AM UTC-5, Dis/loc wrote: