and regular expressions alone may not be quite enough in a context where the unit of indentation is not known in advance.
For example, are four contiguous spaces one indent or two ? We probably need to prescan the whole outline before we can take a reliable view of that.
On the Mindnode questions:
- There is a (whole map) Export as MD built in,
- but for sub-trees, select and copy seems to be the only option.
(And the clipboard representation of outlines is tab-indented)