Can one extend and duplicate PC display at the same time

Is there a way to setup four displays, with two extended and the other two (ie laptop display and one other display) duplicated.
I am using a toshiba satellite laptop which has 3.0/2.0 usb port, hdmi and vga ports.
I also got the Plugable USB 3.0 to HDMI adapter but ended up with three extended displays after connecting. Please help!

Thanks for asking!

This should be possible in most cases. Here’s a video that explains how to set up your displays:

Let me know if you need more specific instructions!