The Vertical Override minicalendar modifier specifies, for a given minicalendar, that the flow of dates should be from vertical, even though it is set to false in the flow of dates minicalendar options.
The vertical override modifier is
:vrt
The vertical override modifier is useful when mixing vertical and horizontal minicalendars on the same page.
See also: Horizontal Override and other minicalendar modifiers.
Topic 176180, last updated on 23-Jun-2020