private void setUpDrop() {

		setAcceptableFlavors();

		// set up drop stuff
		dropTargetAdapter =
			new DropTgtAdapter(this, DnDConstants.ACTION_COPY_OR_MOVE, acceptableFlavors);
		new DropTarget(listingPanel.getFieldPanel(), DnDConstants.ACTION_COPY_OR_MOVE,
			dropTargetAdapter, true);
	}
TODO: Remove or rename this to something that accommodates redirecting writes, e.g., to a
debug target process, particularly for assembly, which may involve code unit modification
after a successful write, reported asynchronously :/ .

@return true if this listing represents a read-only view
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/codebrowser/CodeViewerProvider.java