How to Change data rate to 500kbps/125kbps

I am using nrf connect SDK version 2.0

Here, I have a option to change data rate to 1Mbps and 2Mbps,

I'm thinking by using  "CONFIG_BT_CTLR_PHY_CODED" we can change to 125 or 500 kbps, i'm not sure which one its going use as PHY Data rate?.

(by changing this one I can increase range(LOS) of BLE devices) 

Related