General restrictions for ISMF customization include the following:
- Before changing anything, you should make a backup copy of ISMF.
Keep this unmodified version of the product for diagnostic purposes. IBM® support and maintenance is provided
only for the unmodified version of ISMF.
- Do not delete or rename any of the parts of ISMF. Deleting or
renaming severely affects processing and can cause ISMF to fail.
- ISMF is copyrighted. Under the IBM licensing
agreement you may modify ISMF for your own use. You may not, however,
modify it for commercial resale.