As I understand you want to display currently selected mode in text?
You can do this using the parameters for LEDs (as usual - assign any annunciator as "LCD - "Conditional" Text".
- Open the combo radio image map in the configurator.
- Select the LED indication parameters (Radio_****_Sel)
- Select "LCD Conditional Text" output type.
- Assign it to an LCD and enter the text string to display.
Now, the text will be displayed when your radio is in the selected mode. Repeat this for every mode for the same display position.