Catalog Variable to select multiple dates based on another multiple dates variable value

[GD11]

I have two multiple date variables , 1 . To select 1 saturday each month in the quarter, so 3 saturdays in a week, 2. this variable should allow 3 dates to be selected but all those 3 dates should belong to week previous to the saturdays selected in 1st variable, how can i make this possible.

[Shamma Negi]

There is no variable which shows multiple dates.

Only Date/Time or Date type of variables.

[GD11]

@Ankur BawiskarPlease help.