2D Drawing - Symbol References

We've just updated from Creo Parametric 6 to 8 and I'm having issues with placing symbols on my drawing. In Creo 6, when inserting a symbol, there was an option to place it In Free Space or On Entity or On Vertex. I could use the On Vertex option to place the symbol on a datum point. I can't seem to find this option any longer in Parametric 8. The option for referencing a datum point seems to have vanished.