void select(BitSet bs, boolean isQuiet) {
		selectionModeAtoms = true;
		if (bs == null) {
			if (!viewer.getRasmolHydrogenSetting())
				excludeSelectionSet(viewer.getAtomBits("hydrogen"));
			if (!viewer.getRasmolHeteroSetting())
				excludeSelectionSet(viewer.getAtomBits("hetero"));
		}
		else {
			setSelectionSet(bs);
		}
		if (!isQuiet)
			viewer.reportSelection(GT._("{0} atoms selected", "" + getSelectionCount()));
	}