Hello please help!!

(I tried to search but found nothing)
Ok here is my dilemma
I need to run -3- 40" 1920/1080 TVs off 1 computer. (thinking ill need HDMI splitter or somthing)
Each screen will show
different menu items (fast food menu)
How can i make this all work?
How do i make three menus in signage studio?
(I had 1 tv hooked up and 1 computer monitor but the menu stretched across both screens. didn't display separate on each)
Do i make one long division (screen) and put each menu items beside each other??
that would be big?!?! 1080 x 3 screens is 3240.
please help