That is not a supported configuration when using the drivetrain object in blocks.
If you’re programming in C++ you could make it work – configure two motor groups in the configuration menu (reversing individual motors as needed), then set up a drivetrain in code as follows:
// substitute these values for the correct values for your robot:
const int myWheelTravel = 200;
const int myWheelBase = 180;
const int myTrackWidth = 250;
smartdrive myDrivetrain(LeftDrive, RightDrive, MyGyro, myWheelTravel, myWheelBase, myTrackWidth);
or in Python for 2nd gen:
# Begin project code
myWheelTravel = 200
myWheelBase = 180
myTrackWidth = 250
myDrivetrain = SmartDrive(LeftDrive, RightDrive, brain_inertial, myWheelTravel, myWheelBase, myTrackWidth)
Also – it might just be the angle the photo is taken from, but it looks like that robot has 250mm wheels on the back and Omnis (200mm circumference) on the front – that will also cause problems with the built-in drivetrain object since the motors would need to spin at different speeds. In general all the powered wheels on a drivetrain should have the same circumference.