Issue with DAX Measure for Filtering Multiple Visuals Based on Slicer Selection in Power BI

Hello everyone,

I'm experiencing difficulties with a DAX measure in Power BI that is intended to filter four visuals based on selected experiments from a slicer. Despite multiple attempts, the visuals are not behaving as expected.

Context:

• Data Source: I have a table (Sheet1) that contains data on various experiments.
• Objective: I want to display the same feature in the same phase across four different plots, each corresponding to one of the selected experiments from a slicer.
• Setup:
  • I have a slicer based on Sheet1[Experiment] that allows multiple selections.
  • I have four visuals (plots) where each should display data for one of the selected experiments.

I created measures to identify the first, second, third, and fourth selected experiments:

FirstSelectedExperiment =
IF(
COUNTROWS(ALLSELECTED(Sheet1[Experiment])) >= 1,
INDEX(
1,
ALLSELECTED(Sheet1[Experiment]),
ORDERBY(Sheet1[Experiment], ASC)
),
BLANK()
)

IsFirstExperimentSelected =
IF(
HASONEVALUE(Sheet1[Experiment]) &&
SELECTEDVALUE(Sheet1[Experiment]) = [FirstSelectedExperiment],
1,
0
)

SecondSelectedExperiment =
IF(
COUNTROWS(ALLSELECTED(Sheet1[Experiment])) >= 2,
INDEX(
2,
ALLSELECTED(Sheet1[Experiment]),
ORDERBY(Sheet1[Experiment], ASC)
),
BLANK()
)

IsSecondExperimentSelected =
IF(
HASONEVALUE(Sheet1[Experiment]) &&
SELECTEDVALUE(Sheet1[Experiment]) = [SecondSelectedExperiment],
1,
0
)

ThirdSelectedExperiment =
IF(
COUNTROWS(ALLSELECTED(Sheet1[Experiment])) >= 3,
INDEX(
3,
ALLSELECTED(Sheet1[Experiment]),
ORDERBY(Sheet1[Experiment], ASC)
),
BLANK()
)

IsThirdExperimentSelected =
IF(
HASONEVALUE(Sheet1[Experiment]) &&
SELECTEDVALUE(Sheet1[Experiment]) = [ThirdSelectedExperiment],
1,
0
)

FourthSelectedExperiment =
IF(
COUNTROWS(ALLSELECTED(Sheet1[Experiment])) >= 4,
INDEX(
4,
ALLSELECTED(Sheet1[Experiment]),
ORDERBY(Sheet1[Experiment], ASC)
),
BLANK()
)

IsFourthExperimentSelected =
IF(
HASONEVALUE(Sheet1[Experiment]) &&
SELECTEDVALUE(Sheet1[Experiment]) = [FourthSelectedExperiment],
1,
0
)

Since I am still beginning with PowerBi, I might have overestimated it and I am loosing time now. Again I do not want to configure each visual manually butr I want the plots to change based on the selected experiments in the Experiment Slicer. For Example:
Plot one gets Experiment 1 relevant data, Plot 2  gets Experiment 2 relevant data, etc.. And all this in the same dashboard by dynamically selecting multiple experiments from a slicer.