I think a text block style structure which acts like as Ms Word table (with ability to add and remove rows columns) would be really handy. I use text blocks with the tab key to make tables of components and part numbers at the moment. The component values are sometimes derived from the analysis using the inline math block inside the text box. It works ok but the formatting is clunky and easy to mess up.
In summary: I'd find a text based table feature into which one can still add the in-line math block useful. Attached file shows my present method.