void setGroupSize(int groupSize) {
		if (groupSize == hexGroupSize) {
			return;
		}
		hexGroupSize = groupSize;
		ByteViewerComponent component = viewMap.get(HexFormatModel.NAME);
		if (component != null) {
			component.setGroupSize(groupSize);
			component.invalidate();
			panel.repaint();
		}
		tool.setConfigChanged(true);
	}
Get the offset that should be applied to each byte block.
@return the offset that should be applied to each byte block
Ghidra/Features/ByteViewer/src/main/java/ghidra/app/plugin/core/byteviewer/ByteViewerComponentProvider.java