First, there was a simple 'Week view' for which you  could set
 an action. If you set a day on an action, it will be shown on that day 
in the Week plan. If you don't, it would be shown on the 'Not set' 
section. The quadrants filter filter by this day - it checks for exact value of this property of an action set.
Then 
there came the recurrences - from simple ones like once a week to a 
little more complex, like several weekdays. This new functionality has 
to be merged with the previous 'day' selection. And it took priority 
over the weekday set. I.e., if you have both, the recurrence will be 
taken into account on the Weekplan page - the action will be shown for 
each recurring day, and ignore the day set. The problem here is - the 
filter on the FTF/Actions pages still works with the old day setting. 
This is definitely a bug (or, rather a not updated functionality), so 
we'll fix it soon.
Also, there's a third feature that 
is related - reminders. Up until recently we had only one-shoot 
reminders. Recently we've added the reminder type 'On recurrence days'. 
From its name you could have guessed that it fires on the days the 
action is to be shown. Every day it takes today's actions and schedules 
reminders for those that have a reminder set. And by 'today's actions' I mean those that are shown on the Week plan by the logic described above.
Again,
 since the system has been evolving, not everything finished - we are 
working on that. Hope the logic is clearer and more helpful now.
.gif)

