I would like to be able to enter multiple grid references for samples in a similar model to the taxon determination - i.e. there could be a number of grid references, but only one would be the preferred.

This would allow me to record the original grid reference supplied even if wrong, whilst reporting a corrected reference - or for the LRC to increase (or decrease) the precision of the grid reference if unhappy with that supplied - at the moment I have to put the original grid ref in the comments, which mean it is possible for other to enter that record not realising the grid reference is in fact wrong