Question about TX power control on Central device

[ThomasCook]

I know how to set high power (8dBm) when running a nRF52840 as a peripheral (i.e. sd_ble_gap_tx_power_set(BLE_GAP_TX_POWER_ROLE_ADV, m_advertising.adv_handle, 8) ), but how can I set a device running as central to the same 8dBm transmit power level? 

[awneil]

devzone.nordicsemi.com/.../151644