Getting system tiddlers to display in TiddlyMap?

[si]

This is addressed on the GitHub page (https://github.com/felixhayashi/TW5-TiddlyMap/issues/17), but I wondered if anyone had a workaround?

It sounds it can be solved by using the title to identify nodes:

You may set TiddlyMap to use the title as id field by setting "field_nodeId": "title". 

But I can't find any option to do this in TiddlyMap. Maybe I am just blind? The issue is from 5 years ago so maybe things have changed since then.

Any help would be much appreciated.

Stay safe! Si