Tracking Points

Hi,

I have a grasshopper model that generates a large number of points. These are then transformed and some culled to to get to the final result.

I would like to name the points at the start so I can recognise each of the results. Is there an easy way to do this.

Can you add "extra data" to a point? a list or tree, i believe, can only contain one data type.

Do you need to create a parallel path that manipulates a list of tags?

Thanks in advance

dean