chromedriverExecutable option in Appium 2

I’m trying to specify chromedriverExecutable path when starting appium2 but I get the following error
index.js: error: unrecognized arguments: --chromedriver-executable
Is this option not supported by appium 2 anymore. How should I do it now?

“These are going to be available later through --driver-args” - is there any documentation on how to use