void setViewerHighlight(ByteBlockSelection highlight) {
		try {
			setHighlight(getFieldSelection(highlight));
		}
		catch (Exception e) {
			Msg.showError(this, null, "Error", "Error setting highlight", e);
		}
	}
Set the new group size

@param groupSize the group size
@throws UnsupportedOperationException if model for this view does not support groups
Ghidra/Features/ByteViewer/src/main/java/ghidra/app/plugin/core/byteviewer/ByteViewerComponent.java