Hi @jack_huang1,
Thank you for contacting NXP Support.
Yes, the i.MX8MP can achieve multi-screen display.
Regarding hardware, you can use the imx8mp-evk-rm67191 that enables output of MIPI-DSI for that display model.
For software, the BSP doesn't support clone screens. In this cases, you will need to work in weston.
I hope this information will be helpful.
Have a great day!