It would appear that HDMI does not work well with splitting... so you would get the same picture on multiple monitors if you tried hooking up more than one to your single HDMI port.
Under "Scenario 2 – One Video Port", it seems like they have a recommendation for a piece of hardware that MIGHT make it work. Not sure if it would be viable to use with gaming or if your computer performance would go down a bit
Depending on the laptop, a "dock" might be an option - as said here:
But the dock has to be compatible, has to have the feature, etc...
Be sure to do your own research, ask on Amazon Q&A for the products, etc - before you make any purchases