The expert is only intended for use with people on Basal Bolus regime.. so ts not possible to use with the insulin mixes
most people on mixed insulin use a fixed dose a number of times a day as advised by the DSN, this is less flexable than basal bolus, as you should be eating to suite the insulin dose, an not changing the dose to suite what you want to eat.
so you should be using the meter without the insulin advisor, or you could aquire a aviva nano so its smaller and uses the same strips, saving the expert for when/if your dauther tries basal bolus again