It would be cool if the score select buttons updated dynamically based on the objective type. I haven't played in a long long time, but I assume there are some objectives that you score only multiples of some number. I'll give an example, maybe there is a secondary objective that gives you 3 points per unit destroyed. Would be nice instead of having the options 1-15, you had 3,6,9, etc.
A step further: for an objective like this one, you could have a counter for the number of units destroyed and then the app calculates the total.
Secondary score buttons could change based on the secondary objectives chosen (see note below from reddit)
Source: reddit