I'm able to insert some nodes. However, within these nodes, I can't insert text that would include subscripts (for example, the expression "P_i(n)").
1 Answer
Select the node, ensure it's label has HTML turned on (Text->Formatted Text):
Then start editing the label (which is now HTML). The toolbar will change to the HTML label toolbar, providing a subscript option:
answered Apr 28, 2014 at 13:34
