There's an Airspeed Reference Bug on the Airspeed Display and I was wondering how I can change the setting. It is at present set to 240 Kts but cannot find where it can be adjusted.

Thanks in advance.

Across the bottom of the MFD find the button for V Speeds, click and set your T/O and Landing Speeds here.  Once you set them and click on the box, they will transfer to your speed tape on the PFD.  You can also adjust the speeds while in FLC mode and use the PITCH wheel on the AP panel (up or down) .