You use the ABAP Editor to create and edit your programs.

If you want to use the ABAP Editor together with the Modification Assistant, read the
Modifications in programs documentation.
Contents:
Introduction to the Editor The Editor Interface Basic Editor Commands Changing the Editor Mode Special Navigation Tools Creating Screen Elements Creating Screen Elements Editing an Existing Program Saving the Source Code Using the Clipboards Using Compression Logic Working with Lines and Blocks Searching and Replacing Using Statement Patterns Using ABAP Help Expanding Includes within a Program Improving Source Code Layout Creating Comments Checking Source Code Extended Program CheckDisplaying Information About a Program
Uploading and Downloading Files Assigning Types to Formal Parameters Maintaining Text Elements Maintaining Variants The Splitscreen Editor Working with Program Messages Command Mode in the ABAP Editor