Last updated beta version of Google Start for developers added the ability to use the interface in landscape mode. It is important to recall that this update is only relevant in relation to the devices based on the Android 6.0 Marshmallow above. Initially, Google is going with this update to normalize the size of icons, thus eliminating the problem over-allotment large icons on the background of the smaller ones. A few hours later, this function has been deactivated. There is speculation that Google is not finalized until the end of it. It is possible the normalization of the function icons will appear in future updates.