Filter pane - how to join two of them or make behave the same?

[laragalvan]

Hi dear community! Im having an issue and i really hope you guys can help me. 
I have these 3 data sheets from excel and qlik sense make the following associations: 
(Plant - which involves prueba1 and categories sheets
Month - which involves prueba1 and ps_breakdown_categories sheets )

The problem:

In my dashboard I have some pie/donut charts but one of them is not working dynamically because of this problem. I need to join these two dimensions in one filter pane or unlease have the chance to make them have the same behaviour (select a plant in one filter and automatically have it selected in the other).

PS: Having the 'Plant' association with the 3 data sheets does not work for me because this make them to have one 'Month' field for each other (prueba1.month, categories.month, ps_breakdown_categories.month).

Thanks! 

[jchx]

Kinda confused by your explanation - attach the excel sheets?