Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
Do you know the full name brand and model of the dock you have? Is it an intel wireless dock? If so,
First, you need to install the Intel dock manager from this page.
Download, open install, and then run the dock manager.
Inside the dock manager you should then be able to add and configure the monitors.
If you get stuck or run into any issues let me know.
I strive to provide great service, and greatly appreciate a 5 star rating clicked and submitted when you are satisfied.. I always answer follow up questions.Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.
Ok, we need to download and install the lenovo dock software from here.
Once downloaded, open and install it. Once installed, restart your lenovo.
Then, we shold be able to use the windows key and P to extend your desktop, or go into the dock manager and add the displays. If you get stuck or run into any issues, let me know.
Or, I can connect and work through these issues for you directly on screen.