I have gotten close to calculating how to set the initial content of a date picker to show the first day of the month. The trouble is I think I need a -(days) instead of a +(days) formula:
Initial Content = Current Date +(days) Current Date extract: days
<-- need to either make the days value negative or have a -(days) function.
Also there seems to be a change (hours, years) to a certain amount, but not for days…yet (fingers crossed).