Thanks a lot for your help.
Unfortunately, it didn’t work, as you can see in my dual river mind map wiki. When you do [Shift] + [Click] on the “Muffin 1” link in the Welcome to Stroll, it opens in a new river at the right. If you [Shift] + [Click] in the Nodes Templates Demo on the same tiddler link, but this time it opens at the top in the same river, instead of the river at the right side.
Also, I notice that the “plus” / “minus” sign in the mind map doesn’t appear anymore, after installing your patch (note the screenshot below and the red arrow in it), which erases an important visual clue for folded nodes regarding if they contain children nodes and they become just like regular nodes without children.
I’m going to migrate my experiments to TiddlySeq Theme, based on Elixir mind map, as now I understand better the limitations of Tidgraph and also the posibilities of Elixir mind map regarding usage of images, rich HTML content and storage format.
Thanks again,