Unless you made one batch, separated, put one lot in the oven while you worked with the first bit, colouring scenting etc, then get the separated part out of the oven and colour, scent, then mould together. Even put the first part that's already in the mould, into the oven to keep warm while you scent and colour the second lot, then pour, then maybe keep in the oven just for a few minutes so they "meld" together properly.
Does this make sense? :shock: (Please bear in mind that I have only done this in my head not in real life)