Walk-through Mode

[bitjson]

It would be quite useful to provide a "walk-through mode", where every sample in the evaluation is placed on a new line, and the instruction descriptions are placed beside the development of the stack. Then users can read each line, and see a description of what's happening, like:

OP_1: Push the Script Number 1 onto the stack.         | 1
OP_DUP: Duplicate the top element on the stack.        | 1 1 

This is mostly a feature for reviewing scripts rather than writing them, so it might be a good part of a feature to share scripts. (It doesn't need to be integrated into the actual Editor mode, but could be opened in a dialog, for example.)