I use the EBU R128 plugin which allows me to scan a track's DR and even average multiple tracks' DR for an album DR. The problem I'm having is that it is a buggy plugin that doesn't let you scan your entire library at once like you can with replay gain. Because of this, I have to manually select 20-50 tracks then right click and move my mouse down to the bottom of the menu, hover over EBU R128, then click tag. Averaging multiple tracks' DR is the same process. I would imagine that many other plugins would benefit from being able to set a hotkey for every single function, similar to how you can on foobar2000. With foobar2000, I can set a hotkey for every function and the list (of functions) is separated by the context menu or by the plugin that the function belongs to.