OK, here is my little proggie called JTxE. It will only change the needed lines in the menu1028_768.ini.
http://dodownload.filefront.com/8798...f51bb491ae5c2a
Install it with JGSME.
1. After that you will find an JTeX.exe in the Silent4 Folder.
2. Start it and you will find the mod for changing the chronosize.
Press the button with the green Arrow and JTxE will do his work.
Like JSGME you can deinstall the mod with JTxE.