Plutonium

so I wanted to try out these gsc's one that i got off github and one i made

heres the one I made it's a slide for trickshotting and some reason i have to do the exec command in plutonium and it still doesnt work i want to be able to do it kinda like dojahs ts server.
if this doesnt look like it would work could someone please send me the correct script and id also like to implement it into vanityts.gsc if possible

main()
{
    level thread onPlayerConnect();
}

onPlayerConnect()
{
    for(;;)
    {
        level waittill("connected", player);
        player thread monitorButtonPress();
    }
}

monitorButtonPress()
{
    self endon("disconnect");

    for(;;)
    {
        // Wait until both 'B' (button_b) and 'Left' on the D-pad (dpad_left) are pressed
        self waittill("button_pressed", "+stance"); // 'B' button is typically the 'stance' button
        self waittill("button_pressed", "dpad_left");

        // Call the slide spawn function
        self thread spawnSlide();

        // Add a delay to avoid multiple rapid spawns
        wait 0.5;
    }
}

spawnSlide()
{
    // Spawn the slide at the player's current location
    slide = spawn("script_model", self.origin);
    slide setModel("com_plasticcase_friendly"); // Placeholder model; change to any desired model
    slide.angles = self.angles; // Align with the player's direction
    
    // Apply custom properties to the slide if needed
    slide.knifeTrigger = true;
    
    // Optional: Store the slide for future reference if needed
    self.slides = self.slides + [slide];
    
    self iprintlnBold("^2Slide spawned!");
}

also heres a screenshot of where i have it