To use ROBOTC, you need to install the ROBOTC firmware from within the ROBOTC environment. It’s a button at the top of the screen and takes a couple of seconds.
To flash back to Modkit, just download a program from Modkit and the ROBOTC firmware will be overwritten. You can’t have both on the Brain at the same time.
This would allow some free text and the value would be displayed in place of the %d.
The number 1 inside the bracket can be either 0,1,2,3 or 4 depending on which line of the display you want to put the text on. getGyroDegrees could also be getGyroHeading depending on which gyro function you are using.