Console Improvements

Working with the console is extremely convenient, but it would be even better adding cursor position info (line/column) and allowing a floating split point between coding and result areas.

As it is now it's ok when you have few lines of code and a big array as a result, but it's a bit tedious when you have 20 ore more lines of code and a single result as an output.

I will also add the possibility to save the code  to be able to resume later. This is important when you want to test a code variation or when you exit from the edit mode (which right know clears any console content)

The bandaid solution is to use an external notepad, but I would prefer a built-in solution.