[Quartus] how to define the compilation libraries for VHDL files?

BTW, does Quartus Prime supports the context statement?

I'm receiving the following error:

Error (10500): VHDL syntax error at t_all.vhd(6) near text "context";  expecting "entity", or "architecture", or "use", or "library", or "package", or "configuration"

for the following file contents (this file is defined as VHDL-2008 file in the Project Settings):

context t_all is
  library pkgs;
  use     pkgs.t_bit.all;  
  use     pkgs.t_lpfsm.all;      
  use     pkgs.t_des.all;  
  use     pkgs.t_fifo.all;  
  use     pkgs.t_ports.all;  
  use     pkgs.t_tbl.all;  
end context t_all;

It seems Questa Prime does not recognize the context keyword...

So, how to fix/workaround?

How can I use VHDL-2008 context statements with Quartus Prime? I'm using QuestaPrime v16.1.

Thank you!