Constants/Parameter Side Bar
I think it would be a good idea to have a constants side bar. This side bar would have 2 columns, one to name a value and one for the value. It would be static and would not scroll with the sheet. It would also be consistent across different sheets. I often need the use constants / parameters in my sheets and it can be annoying to change them if I want to see new results. Having a pervasive sidebar would allow me to update and view the results on the fly. The name of the constant /parameter could also be used in functions to increase readability.
Thanks for reading!