The 6-Week Override minicalendar modifier specifies, for a given minicalendar, that it contains 6 rows of @ dates markers (ie. 42 @ markers).
The 6-week override modifier is
There are extremely rare cases of grids which combine both 5-week and 6-week minicalendars, but the main use of the 6-week override modifier is to correctly display 6 week vertical minicalendar dates, when you may be using a 4-week minicalendar, a 5-week minicalendar and a 6-week minicalendar together with different tab positions to have the first and last weeks of all minicalendars justified or aligned, as in the example below.
See also: 5-week override and 6-week override.
Topic 176195, last updated on 23-Jun-2020