thank you for the response..
Apologies, maybe I am not describing my problem properly. The LCD can be rotated with changing "rotate= " in /boot/config.txt
But I will like it to be displayed in "landscape" mode as picture below but it is displaying in "portrait" mode regardless. In our web-browser, we can change the "display mode" by changing the window size.
What I meant by "portrait" mode
What I meant by "landscape" mode