Daisy Chain monitors

I have a Surface Pro laptop USBC into a Lenovo ThinkPad Hybrid USB-C with USB-A Dock (DUD9011D1) and two Lenovo ThinkVision P27q-20 monitors.

Previous setup has been two monitors DP into dock, but I wish to change this and daisy chain together if possible.

In the monitor menu, I have set both monitors option to DaisyChain "On".

When I connect them as below, and in Windows choose extend, the two external monitors are duplicated, and my laptop screen is extended. I cannot seem to make the two external monitors extend.

In System>Display, I see my laptop screen, and then 1 addition screen representing both external monitors. The icon representing the external monitor/s is set to extend.

Cable setup: 

Laptop --> USBC Cable --> Dock --> DisplayPort 1 --> Monitor1 DP --> Monitor1 DP Out --> Monitor2 DP

Any advice how to get these monitors to daisy chain? Thank you.