DAX function / filter context issue

I was just able to actually solve this:

-I created a new table (basically duplicating one of my queries)

-Added a column calculating the values that I need (you have to adapt it since it is not a measure of course, like removing aggregators and replacing them with the actual columns in your table)

Now I created a measure which should be displayed in my visual.

e.g. CALCULATE ( SUM ('table'[Value))

I used REMOVEFILTERS to get rid of the slicer selection (this selection forced me to stay within the quarter which the user selected)

And now I could use DATESBETWEEN('Dates'[Date] , FIRSTDATE('Table'[Date]) , LASTDATE('Dates'[Date] )

to actually get the time period that I wanted to look at, in my visual.

Now whatever quarter the user selects will be the last data point on my visual.

If someone has a similar problem and my solution is not clear, please pm me