Add Plug in to created instrument track

Hello,

I dont know JavaScript at all but have been trying to piece together a script to open a new instrument track and then i want to add kontakt to, I took the code from another post...

/* Script includes code from Oliver Momm */

// Function to set Pro Tools frontmost via AppleScript
function setPTfrontmost() {
sf.system.execAppleScript({
script: 'tell application "System Events" to tell process "Pro Tools" to set frontmost to true'
});
}

// Set Pro Tools frontmost
setPTfrontmost();
sf.wait({ intervalMs: 50 });

// Invokes "Track -> New..." dialog window
sf.ui.proTools.menuClick({
menuPath: ['Track', 'New...']
});

// Wait for "New Tracks" window to appear
var ntDlg = sf.ui.proTools.dialogWaitForManual({ dialogTitle: 'New Tracks' }).dialog;

// Select "Instrument Track"
for (var i = 0; i < 5; i++)
sf.keyboard.press({
keys: 'cmd+down'
});

// Select "Stereo"
sf.keyboard.press({
keys: 'cmd+right'
});

// Click "Create" button
sf.ui.proTools.focusedWindow.getFirstWithTitle("Create").elementClick();

But cant now get it to add in the instance of Kontakt.

any help would be awesome thanks