Yes. I wish we could choose our own variable(s) in LE.
If Steinberg redesign LE so that we can add our variable, it will be huge. Just like the invention of Algebra by adding variable to arithmetic.
Arithmetic> , being the most basic of all branches of mathematics, deals with the basic computation of > numbers > by using operations like addition, multiplication, division, and subtraction. On the other hand, > Algebra > uses > numbers and variables > for solving problems.