Enable Scrolling and right click in trackpad in Kali along with keyboard backlight

I am new to this forum and Kali as well. I have a Macbook 13 inch 2015 model, and recently I installed Kali in it. I was able to configure broadcom drivers but even after googling a lot, I don't see any progress with my touchpad. I tried using the inbuilt utility but that dosent seem to work as well. Here is a screen shot. I've also tired using synclient -i. But it shows bash: synclient: Command not found