I often do various calculations with bytes and bits. It goes like this: first I open an empty buffer in SE and put the numbers in the buffer. Next, I open a calculator and do the math with the numbers placing the result in the same buffer. Copying the numbers from calculator and back to the buffer is quiet tedious. What I would really love to see is SE doing the math for me and placing the result in the buffer.

For example, if I place my numbers in a row and I want to sum them, I'd select the numbers and press a plus button in SE and it would calculate their sum and place the result below.

Same if the numbers are in a row. I'd select the numbers and press the plus sign. SE would sum them and place the result at the end of the row.

Another way of enhancing simple math calculations is being able to pick the a math expression directly from the buffer using selection, and calculating the result in the buffer.

For example, I'd write 8*24 in the buffer, select it and press calculate button. SE would calculate the result of the expression and append =192 after the expression.

This is already implemented in built-in calculator in SE, so extending this functionality onto buffers should be easier.

Note: I know that any of these can be implemented using a macro, but there's a huge value in having it in the SE itself. This is because I have SE installed on three computers that I work with and maintenance becomes a real pain - not only I should keep up with the latest versions of SE itself and its hot-fixes, but also I should keep up with macro releases.