Can parameter or generic be set from Quartus II?

Pancake,

This is some code I knocked up to test it...

library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
entity fred is
  generic ( frog : integer := 1 );
  port ( 
    in1  : in  std_ulogic_vector (3 downto 0);
    in2  : in  std_ulogic_vector (3 downto 0);
    sel  : in  std_ulogic_vector (3 downto 0);
    out1 : out std_ulogic_vector (3 downto 0));
end fred;
architecture RTL of fred is
  
  --
  component mx_comp_1
    port( 
      in1  : in  std_ulogic;
      in2  : in  std_ulogic;
      sel  : in  std_ulogic;
      out1 : out std_ulogic);
  end component;
  --
  component mx_comp_2
    port( 
      in1  : in  std_ulogic;
      in2  : in  std_ulogic;
      sel  : in  std_ulogic;
      out1 : out std_ulogic);
  end component;
begin
   
   GEN: for n in 3 downto 0 generate
      
      COND1 : if (frog = 1) generate
        mx1g : mx_comp_1
          port map (
            in1  => in1(n), 
              in2  => in2(n),
              sel  => sel(n),
              out1 => out1(n)
          );
      end generate;
      COND2 : if (frog = 2) generate
        mx2g : mx_comp_2
          port map (
            in1  => in1(n), 
              in2  => in2(n),
              sel  => sel(n),
              out1 => out1(n)
          );
      end generate;
       
   end generate;
end RTL;

If you manually change the frog generic from 1 to 2 it changes which mx_comp is generated in Quartus, as you would expect.

Nw to do this is the qsf I used...

set_parameter -name frog 2 -to fred

In this case fred is the top level. It did not work.

Now either I'm doing something wrong or it's simply not working.

Thanks for your effort on this.