Show bundle developer page (Globe Icon).If the version of Mac OS is older than what SIP supports, the feature will not be available, and neither will be the ability to check the status of.
~/Library/Application Support/SIMBL/Plugins This includes macOS Mojave, macOS High Sierra, MacOS Sierra, and Mac OS X El Capitan, and it’s safe to assume all future Mac OS system software versions will have SIP enabled by default as well./Library/Application Support/SIMBL/Plugins (Disabled)./Library/Application Support/SIMBL/Plugins.
MySIMBL is a successor to the application EasySIMBL.