After you have run a simulation, the NC Code tab is active.

You can edit the NC Code directly in this tab.
Right-click in the code area to display the context menu.

Use Cut, Copy, Paste, Delete, Find, Replace, and Undo to edit the code.
Select the size of the text displayed from:
Fixed Width Font — Select this option to display the NC code in a fixed-width font. This means that each individual character is the same width, which can be easier to read because the characters line up vertically. Deselect it to display the NC code in a variable-width font.
You can use the Post Options dialog to change the post options and select the controller.