We’re working on Advanced Measurements and I think that it’d answer some of your needs. You’d be able to select a region of channel and generate some metrics for that region, such as pulse count, frequency and duty cycle. On top of that, you’d be able to create (and share) custom measurement functions to calculate more metrics.
In regards to measurements for analyzers, it’s an interesting idea! We’ll add that to our list as we’ll have to think about it more 
Out of curiosity, if we’ll have a feature requests page, would you use it?
Thanks again!