Flowcode Support Board

Hello, please tell me how I can change the vref option parameter in accordance with what I need? In older versions of the flowcode there was a choice of Vref option = VDD, but neither fc9 nor fc10 has this anymore. Maybe it's possible somehow? Very necessary.
The screenshot shows that the choice is fixed, but it is not suitable for processors with a 3.3 volt power supply.
Help please.

Hello.
You can only select what the target devices allow.
This is from the expressive site: Notice the information states There are 4 available attenuation options.
As you can see the figures on the right match the internal reference voltages on the ADC component withing Flowcode.