Adjusting line height

Firstly, just wanted to mention that the plugin is superb. The only feature I find a bit odd that is not included is a button to adjust line-height.

So if I want a specific text block to be a smaller font, then I use this plugin to drop paragraph text from 12px to 8px for example. Unfortunately, the line space remains as it was so the line-height is still set for 12px type, which doesn’t look good. Ok, it can be fixed with css, but if the option to change the font size is there, is there a reason why a button can’t be added for the line height?

Many thanks!