Create a filter pane not fully dependant of another filter pane

[fvarlet]

Hello,

I would like to add a filter pane for the dimension [Category], while I already have another filter pane for the dimension [_MonthYear].

[_MonthYear] is a field of my Master Calendar and represents the last displayed month on my dashboard, which can cover a period of several months.

As there aren't all categories every month, some categories may be greyed out.

I've tried:

Aggr(Only({1} Category), Category)

as dimension of my filter pane, but they're still greyed.
I've also tried to include a set analysis like:

=Aggr({<$(vEmptyDate)>} Reporting,Reporting)

where the variable vEmptyDate is defined as:

%DateKey=,
_Date=,
_DayMonth=,
_WeekDay=,
_Week=,
_WeekYear=,
_Month=,
_MonthYear=,
...

But it doesn't work neither.

What could be the solution?

Thank you in advance for your help.

[fvarlet]

Hello,

Have you found a way to keep all categories selectable with the selection of a specific month?

[fvarlet]

I have found a temporary solution, with the creation of a second master calendar, but I'm not sure it's the best solution