SQL Server Admin 2014 :: Selected Columns On View

I have created row level security on two views and adding these two views to particular role.Today I have got an requirement that, middle level managers shouldn't see the all the columns. So I have created another role for Middle level managers and assign securables as those two views with selected columns by grant, and map all the middle level managers to this role. I thought my job is done. But these managers uses this view on SSAS(tabular model) and Excel, In those applications they are not able to load the data.

Later I come to know we can't use -- select * from ViewA ( in viewA I have restristced few columns in the role level) Work around is creating another view and assigning to the role. But how can we achieve column level security to implement this in either SSAS/SSRS/EXCEL?