Turn of +/- for specific rows in matrix

[Anonymous]

Hey Guys, 
I am creating a matrix visual, that has 4 levels of rows, the first 3 apply to all the rows, but the 4th only to some. The result I am getting is that rows that do not have another leve still have an option to be be expanded and it is bad (see example screenshot)

I wanted to ask if there are any solutions to this problem, i. e.:
1. To tun of +/- option on a row level?
2. Remove the unnesecary expanded rows? 
3. Manual turn on expantion for specific rows? 
4. Any other solution you might have? 

Thank you, let me know if you need any additional info for an answer. 

[Anonymous]

@Anonymous  hi, try the below.

https://community.powerbi.com/t5/Desktop/Disable-Drill-down-expand-option-in-matrix-visual/m-p/710436

[Anonymous]

Thank you, but it seems, that this applies to the whole visual, I am searching for a solution on a row level.