title: Group views in ConstraintLayout to treat them as a single view
body: <p>I need to apply some constraints to a group of views in <a href="https://developer.android.com/reference/android/support/constraint/ConstraintLayout.html" rel="noreferrer"><code>ConstraintLayout</code></a>. I want to group these views and continue editing while the layout designer in Android studio treats them as a single view. Is there a way to do so without actually wrapping the views with a <code>ViewGroup</code> (another layout)? If such a wrapper is necessary, maybe there is a wrapper layout that comes with <code>ConstraintLayout</code> and allows to group objects without creating heavy layouts like <code>RelativeLayout</code>?</p>