how to show top 5 according to selected parameter in column chart

[eliasayyy]

hello everyone, i have created a field parameter for closer and opener,

i made measure based on selected measure i want with SWITCH and all is working fine,

but i cant use topn for one specific column because it will affect the other,

this is the measure i made

Chart Margin Selected Measure Reps = SWITCH(
    [Selected Rep],
    "Closing Rep",COUNTX(FILTER('Reps Measures','Reps Measures'[Reps Measures Order] =0),'Reps Measures'[Reps Measures]),
    "Opening Rep",COUNTX(FILTER('Reps Measures','Reps Measures'[Reps Measures Order] =0),'Reps Measures'[Reps Measures])
)

here is the field parameter for measures

and here is result

so how can i show top 5 closers if i select closing reps, and top 5 openers when i select opener reps??

[amitchandak]

@eliasayyy , the measure you are using needs to be a TOPN Measure

TOPN: https://youtu.be/QIVEFp-QiOk
TOPN with Numeric Parameter -https://youtu.be/cN8AO3_vmlY?t=26448