When calling either org-copy-subtree or org-cut-subtree, check if there is an active region that starts on a headline and contains at least one more headline of the same level. If so, copy / cut all the subtrees touched by the region. This saves the user having to count the subtrees he / she wants to operate on in order to use the number as a prefix argument for the command. This change  would make the process easier and provide visual feedback.

Optionally require that the active region fully encloses two or more headlines and nothing else, i. e. that it begins at the start of one headline and terminates at the end of another headline.

Thanks.