How to retrieve ETC and Actual Burdened Cost in Project Function Currency at Resource Assignment Lev

Hello gurus,

I am currently trying to figure out a way to retrieve

ETC and Actual Burdened Cost in Project Function Currency at Resource Assignment Level.

I have found out that PA_FP_WEBADI_NP_CUSTOM_V (public view)

which is used in the standard Forecast/Budget WebADI function is close to what I am looking for

but this view only provides data in transaction currency.

I have also tried to retrieve data from PJI_FP_XBS_ACCUM_F table,

but this table has data in RBS Element level and not in Resource Assignment level.

Is there any way to get total actual burdened cost and etc burdened cost easily?