Suggestions for storebox

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

Package footnotehyper: A hyperref aware footnote environment
Package ieeetrantools: Functionality from IEEEtran for use with other classes
Package footnote: Improve on LaTeX’s footnote handling
Package tabbing: Extended tabbing environment with accented-letter support
Package attachfile2: Attach files into PDF
Package attachfile: Attach arbitrary files to a PDF document
Package pdfmarginpar: Generate marginpar-equivalent PDF annotations
Package repltext: Control how text gets copied from a PDF file
Package hypgotoe: Links to embedded files
Package pdfpages: Include PDF documents in LaTeX
Package xsavebox: Saveboxes for repeating content without code replication, based on PDF Form XObjects
Package ocgx2: Drop-in replacement for ocgx and ocg-p
Package showexpl: Typesetting LaTeX source code
Package forloop: Iteration in LaTeX
Package unravel: Watching TeX digest tokens
Package xfakebold: Fake a regular font for bold characters
Package xcpdftips: Natbib citations with PDF tooltips
Package eolgrab: Catch arguments delimited by end of line
Package savesym: Redefine symbols where names conflict
Package flags: Setting and clearing of flags in bit fields
Package twoopt: Definitions with two optional arguments
Package authoraftertitle: Make author, etc., available after \maketitle
Package aliascnt: Alias counters
Package catchfile: Catch an external file into a macro
Package chngcntr: Change the resetting of counters
Package duckuments: Create duckified dummy content
Package elocalloc: Local allocation macros for LaTeX 2015
Package etex-pkg: ε-TeX support package
Package etexcmds: Avoid name clashes with ε-TeX commands
Package fix2col: Fix miscellaneous two column mode features
Package gettitlestring: Clean up title references