TagSpaces does not support linking from one document to another. Laverna and KeepNote but support this. While you can indeed put a link to a document, all links must be relative, and an external markdown editor would be opened. I suppose if you can load “editorText” (https://github.com/tagspaces/editorText/) in such a fashion that your operating system thinks it is your native markdown editor, that it will work, but it is built as a module, not a separate app I believe.

Since I’m discussing the Markdown, the renderer (https://docs.tagspaces.org/extensions/viewerMD) is nice in that it gives color coded syntax which is a plus. However, I’m unable to find a way to indent code blocks. In Laverna, one would simply use the + or * operator to make this happen before tabbing over enough to make it a code block. Any idea how to do this?