The addchanges and addactivity commands can launch a graphical editor with a file list so you can review the files about to be uploaded and make any corrections you wish:
The ### sequence is a comment. If all lines with files are deleted the operation is aborted. In this example there are two modified files, one file being added, and one being deleted.
If not otherwise configured, the command-line uses the default system editor to display the file list. See Graphical Editor Configuration for information on specifying a different text editor to be used.