Enable hidden options in Ableton Live 9



First you have to create a text file called "Options.txt" in the same folder where Live's Preferences.cfg file is located. Here's where to find the preferences folder (Live 6.0.9 or higher):  Download Option.txt here
Windows XP
\Documents and Settings\[username]\Application Data\Ableton\Live x.x.x\Preferences\
Windows Vista, Windows 7, Windows 8
\Users\[username]\AppData\Roaming\Ableton\Live x.x.x\Preferences\
Mac OS X
/Users/[username]/Library/Preferences/Ableton/Live x.x.x/




-ShowDevicesSlots-








 

-EnableMapToSiblings











-AutoAdjustMacroMappingRange
-NoVstStartupScan




Faster Ableton startup, if you add new VST you must scan vst folder manually in Preferences.