public boolean hasComponentSelection() {
		return ((selection.getNumRanges() > 0) &&
			(selection.getFieldRange(0).getStart().getIndex().intValue() < getNumComponents()));
	}
Returns true if the GUI has a component row selected
@return true if there is a selection
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/compositeeditor/CompositeViewerModel.java