Add a new label at a given position. If the given position already contains a label, then this command does nothing. The label can be given an optional description.
Deletes a label, identified by its index (starting from zero), or all labels when using the special value -1 as index. If no label with the given index exists, this command does nothing.
Opens a window in which the user can edit the position and the description of a label, which is identified by its index (starting from zero). If no label with the given index exists, this command does nothing.
Opens a Kwave script file and processes the commands in it. Uses the context of the currently opened file or the current main window if no file is loaded.
Corresponds to the toolbar button. Starts the playback (if it is not already running) and lets it play in a loop.