The Idea: Adding Compounds Verticaly Could Be The Selling Point

So this is what I have thus far concerning a working calculator.

And if you were to execute a problem:

Now, this example is fairly simple. You get your answers in the right side of the window. You get your answers in three units as well as what the limiting reactant is. Above, you may notice the button to switch between types of problems, and when the contrary is selected a new group of boxes (the boxes which make up a compound for a second product) appear to the right of the last group. This is what the program has looked like in my head for the past year now, and it's super exciting to see it working and running; the pieces starting to fall together! However, whilst proceeding through the writing of the math for the 2 reactant/2 product problems, Mr. Larsen and I realized something:  we need to go bigger. At this moment in time we saw a much bigger picture...a picture that looked something like this: 

  

 A calculator that can add up to 5 reactants and produce up to 5 products. Instead of adding compounds horizontally, we will now be adding them up vertically. The sky's the limit with this. Things to come are input boxes on the sides of each compound to enter the amounts of each compound as well as a drop-down selection for what unit the user's amount is in. I'll also be adding a giant arrow between the reactants and products for effect. One major downfall of doing the calculator like this is that math. The math application towards the solving of the problem only gets more intricate as one starts adding more products and/or reactants and odd combinations could plause issues in the near future. However, this is way too exciting to just get scared off by a few mountains I'll have to climb! I'm excited to see how these new ideas fall into place once the math starts coming together more and more! Again, if anyone has any questions please feel free to ask!