Enabling selection for totoals in crosstab

Hello,

I have some crosstab which data I use as a filter for other report components.

I am using following syntax to use category data as a filter:

DS_1.setFilter("category", CROSSTAB.getSelectedMember("category").internalKey);

I am wondering how to create the syntax to filter other report components by "total" from the crosstab (Enabling selection for totoals in crosstab)

As a workaround I am using button which clear the filters but it is not the same what customer required.

Any advice please ?