Change file permission in BlueStacks player qwerty.kl I want to edit BlueStacks '/system/usr/keylayout/qwerty.kl' to add few more key map to this file, but I'm not able to edit this file due to permission issue. Any suggestions on how can I change file permission in BlueStacks. Any hacks for changing the file permission?

Res: https://getsatisfaction.com/bstk/topics/change_bluestacks_system_file_permission
You probably need to root it to gain access to the protected "/system" file system.

XDA Developer's has a (probably) outdated thread how to do it here.

After you suceeded, you can take the usual steps to mod it (remount /system read-write, copy your edited file over, etc.)