Module Editor Preferences
Module Editor Preferences Section
Module editor right margin
This is the value that specifies the preferred right margin of modules. 
Thus far, it is used in the following circumstances:
- When creating a new module.
 
- When executing a module-editor command for creating or editing a boxed comment.
 
The default value is column 77.
Clear declaration use markers when parsing
Controls whether or not the highlighting of symbol uses produced by
the Show Uses command is cleared when the specification
is re-parsed.
Add a modification history comment to new specs
Adds information about the creation date and modification dates of the module
just after the end of newly created modules.
There are two options that are explained in the description of the Renumber Proof
command in the 
   Editing Proofs section
 of the Viewing and Editing Structured Proofs help page.
On other preference pages
The  General > Editors > Text Editors  preference page has some
settings that you may want to change.   Among them is  whether
lines should be numbered in module editors.
 
↑ Preferences