[SOLVED] Flashing option bytes STM32WB

Is it possible to flash the option bytes on an STM32WB55VC chip using Segger products (preferably J-Link or J-Trace).
From the target menu (J-Flash) I do not see the (allow opt. bytes) for this chip. When I write to the option bytes registers directly using J-Link Commander the registers stay unchanged.

Problem solved:
The STM32WB55 requires writing double word (64-bit) to flash.