Appium 1.6.4 DesiredCapabilities Query

HI all,

In appium 1.6.4 the new GUI has released and what is the use of Desired Capabilities in the GUI itself?
Is it Possible to do Automation without mentioning the DesiredCapabilities in my Code ?

Thanks in Advance

U declare it in the code or in the GUI.

Caps should be specified to work. Doing it via code works well.