Many API functions of CR1.5 are gone？

Corona for 3ds Max Corona for 3ds Max :: Help Required
1

I wanna upgrade my script aimed at Corona1.5. And I list functions using “show renderers.current”.
But I found a lot of API are gone.Such as all functions in “System Setting”.Also “Setup Interactive LightMix”.
What is wrong ?.How do I call them or they are removed..Thanks ~~

2

In Corona 1.5 the system settings are system-wide, and are stored in a config file per-PC rather than per-scene:
C:\Users\Maru\AppData\Local\Autodesk\3dsmax\2016 - 64bit\ENU\en-US\plugcfg\corona\SystemSettings.conf