If you want to set up the growth curve for your feeding herd, then you must go to “General” and then choose “Location”. Then you double click on the location you want to see the growth curve for and a window like this will come up:
In the top you can change the numbers “Daily gain 7-100 kg”, Daily gain 30-100 kg” and “Daily gain 7-30 kg”. You can only change one of these as the others are calculated based on the one you enter.