Power BI Visuals with Measures only without summing up

Question

Situation:
My Report calculates the ranking developments of an accounts in one measure:

Class_Evolution = [Class_Minus_0] & " <-- " & [Class_Minus_1] 

Combined with data from the source table the measures show good results per datarow. The results look like:
...

[Class_Minus_0] and [Class_Minus_1] are measures with X-functions themself that result in a ranking (A,B,C,D) depending on slicer selection.
I also have a measure that counts the rows:

Count Values = COUNTROWS(ExhibitorClass)

This works so far.

Problem:
Now I need to crate visuals with the measures I created. But when I put my measures on a visual they just get summed up:

Need:
I need to built the visuals as in the example below but by using my measured instead of columns.
I have build the report without a slicer on fixed data columns with fixed ranking cutoffs and got a nice result:

However I need to be able to calculate the ranking development with the slicer so I need to build everything with measures.
How should I build my measures to get the visuals I need? Please help me.