How to send 2 different sets of data to simulation using one signal VHDL

Question

I am building SPI master and I need to send 2 data packages to simulation. Here is my code

entity SPI_sas is
    Port ( Clock : in STD_LOGIC;
           MOSI : in STD_LOGIC;
           OutData : out STD_LOGIC_VECTOR (9 downto 0);
           OutDataLatch : out STD_LOGIC);
end SPI_sas;

architecture Behavioral of SPI_sas is
signal Output : std_logic_vector(9 downto 0);
begin
process (Clock)
variable cnt: integer :=0;
begin
if (falling_edge(Clock)) then
 if cnt=10 then
    cnt:=0;
    OutDataLatch<='1';

 else
    OutDataLatch<='0';
    cnt:=cnt+1;
    Output<=Output(8 downto 0) & MOSI;
    OutData<=Output;
 end if;
end if; 
end process;


end Behavioral;

and here is my testbench

entity tb_SPI_sas is

end tb_SPI_sas;

architecture Behavioral of tb_SPI_sas is


constant PERIOD : time := 10 ns;
signal Clock: STD_LOGIC:='0';
signal MOSI_Packet : STD_LOGIC_VECTOR (9 downto 0 ):="1010101010";
signal OutDataLatch : STD_LOGIC:='0';
signal MOSI_stimulus: STD_LOGIC:='0';
signal OutData : STD_LOGIC_VECTOR (9 downto 0 ):="0000000000";
signal Output : std_logic_vector(9 downto 0):="0000000000";

component SPI_sas is
 port (
    Clock : in STD_LOGIC;
    MOSI : in STD_LOGIC;
    OutData : out STD_LOGIC_VECTOR ( 9 downto 0 );
    OutDataLatch : out STD_LOGIC);
 end component SPI_sas;

begin

SPI_sas_inst: component SPI_sas
    port map (
        Clock => Clock,
        MOSI => MOSI_stimulus,
        OutData(9 downto 0) => OutData(9 downto 0),
        OutDataLatch => OutDataLatch);
clk_proc: process
 begin
    Clock <= '0';
    wait for PERIOD/2;
    Clock <= '1';
    wait for PERIOD/2;
end process clk_proc;

    stimuli_proc: process (Clock)
    variable cnt: integer :=0;
    begin
    
    
        if (rising_edge(Clock)) then
            if cnt=10 then
                cnt:=0;
            else
            
                cnt:=cnt+1;
                MOSI_stimulus<=MOSI_Packet(0);
                MOSI_Packet<='0' & MOSI_Packet(9 downto 1);
            end if;
    
            
        end if;
        
        
        
        
    end process stimuli_proc;
    
    end Behavioral;

This is my simulation results

After MOSI_PACKET is sent, I need to send different 10bits to the same packet to write it into OutData. Any ideas?

I have to make it somewhat similar to this