Memory | Quick Info (Ctrl+Q) shows useful information about selected object(s). This action works in any memory view where the selection represents live objects.

In particular, retained and shallow size and object count are shown for the current selection:

If a single object is selected, its generation is shown. If allocation trace is available, it is shown as well.

For an array of primitive type (int[], char[] etc.) array elements are shown (the snapshot must contain primitive values):

If object is a GC root of type "Stack Local" or "JNI Local", corresponding stack trace is shown, as well as local variable name if available: