I have gone through requirement. Please check my understanding.
GTO Modified group only
Eg :GTO modified Data(considering only 3 elements) is as folows:
evtcarclassID,carclassID,carclasstag,carclassname(displayed in selected field)
2,11,L,04-64 GTO
10,6,F,64 GTO
15,7,G,65 GTO
But you want to change them as:
evtcarclassID,carclassID,carclasstag,carclassname(need to be displayed) as:
10,6,F,64 GTO
15,7,G,65 GTO
2,11,L,04-64 GTO
Here F, G, and L are in alphabetical order. Data is coming from Mysql.