Hey, sorry for the late reply! We built this in to our
newest calendar, and it works really well. It's also very easy to add to existing calendars once you get thee hang of it.
I'll mention two cautions.
First, grids don't expand. Given the way FileMaker implemented this you can't get something like the month view to have every day expand in size horizontally. Same with a week view: you can grow the days vertically, but not horizontally.
Second, once you apply scaling options to an object, they copy and paste with the object when you paste it onto a new layout. That can be a good thing, but keep it in mind as it can also cause your layouts to get weird pretty quickly.