I need something like:
but that gives me error message: The expression is not valid after '[BinByDateTime]' on line 1 character 3.
I'm modifying what I found at: https://techgoje.wordpress.com/2014/11/30/spotfire-changing-time-hierarchy-when-using-multiple-date-columns/
It works great to switch between two different dates, but I want to use the same date, just bin it differently.
Screen shots attached of my property controls.