These examples are all based on copying analysis nodes from one
sample to another. However, the same options are available for dragging
within a single sample, and for dragging to the table editor or
the layout editor.
Summary:
To take more than one analysis node separately, use the
command key to select additional nodes. (Use shift key if you want
to select a range of nodes that are all siblings).
To take an entire analysis tree, click on the top-most node of
the set of nodes you wish to take, and drag with the option key
down (select all children).
To take only a single analysis node with all the gates used to
create it, select that node and drag with the control key down (select
all parents).
Thus, judicious use of selection and the modifier keys allows you
to drop only the portion of the original analysis tree that you
want to move.