gomons

May be it is too late, but anyway (= Yes, you can edit random trainer name. As mentioned above, in PW trainers names stored in file a/0/0/2/190, but in PW2 they stored in a/0/0/2/382. File contains 814 lines, every line contains trainer name. In program "BWTE 2" you can see each trainer ID. The line corresponding to trainer is ID + 1.