ESU LokSound XL v4.0 has extensive usage of Indexed CVs. To represent Condition-Output mapping table only required at least 1640=640 Indexed CVs. Plus, additional output and sound configuration. It ends up 2565=1280 Indexed CVs. To make the configuration page more future safe, I increase it to 256*256 = 65536.
The Patch Difference is attached.