Macro ranges

Is there by any chance a way to update the app so that we could enter a percentage RANGE for each macro rather than just a hard percentage?   For instance I would like to keep my fat macros between 75-80 percent and would be happy with anywhere in between that range. Some days I would eat little more fat to be at the higher range somedays i would eat less.  

Thanks very much for your consideration.   Btw overall a GREAT little app  to keep me on program!  I reccommend to ALL my friends following a keto lifestyyle, and thanks for making it so simple for us!

Laurel Johnson