Suggestions for optional

The following packages have something in common with the package optional. The packages are ordered in decreasing similarity.

• comment: Selectively include/exclude portions of text
• phfcc: Convenient inline commenting in collaborative documents
• to-be-determined: Highlight text passages that need further work
• luacensor: Securely redact sensitive information using Lua
• comment-pln: Comment macros for use in Plain TeX
• codesection: Provides an environment that may be conditionally included
• version: Conditionally include text
• versions: Optionally omit pieces of text
• renditions: Multiple versions from the same content
• conditext: Define and manage conditional content
• multiaudience: Several versions of output from the same source
• tagging: Document configuration with tags
• xcomment: Allows selected environments to be included/excluded
• hideanswer: Generate documents with and without answers by toggling a switch
• ifthenx: Extra tests for \ifthenelse
• xifthen: Extended conditional commands
• graphicscache: Cache includegraphics calls
• ifallfalse: Compare a string against a set of other strings
• ifthen: Conditional commands in LaTeX documents
• draftfigure: Replace figures with a white box and additional features
• nameauth: Name authority mechanism for consistency in body text and index
• comment_io: A Python script to comment and uncomment lines
• srcredact: A tool for redacting sources
• ed: Editorial Notes for LaTeX documents
• draftcopy: Identify draft copies
• draftmark: Put draft marks on selected pages
• errata: Error markup for LaTeX documents
• minorrevision: Quote and refer to a manuscript for minor revisions
• vertbars: Mark vertical rules in margin of text
• extract: Extract parts of a document and write to another document
• prelim2e: Allows the marking of preliminary versions of a document