In "\Tools\Settings parameters\Symbols\Notes\Mechanical note" I have tried setting Layer to Leaders and Line weight by Layer. These were saved to the document but have no effect. (As a test, setting Color to red in this menu also has no effect so I'm not sure that the parameters of this menu have any effect.)
In addition to changing the line weight I would also like to change the font weight.
Thanks for any suggestions,
Don C.