The phrase "add or alter" is correct and usable in written English.
It can be used when discussing modifications or changes to a document, plan, or any other content.
Example: "Please review the document and let me know if you would like to add or alter any sections before we finalize it."
Alternatives: "modify or change" or "update or revise".
There was nothing untoward to report, nothing to add or alter.
When he decides to add or alter a dish, ripples are felt throughout the American food system.
The technology is enabled by the gene-editing system CRISPR, which allows scientists to easily and quickly remove, add, or alter parts of the DNA sequence.
Offered by Rep resentative Sam M. Gibbons, Democrat of Florida, it would permit only amendments to strike out individual portions of the bill, but no amendments to add or alter provisions.
I used to have a little programme called "Scottie", a little black scottish terrier that would bark and "wag his tail" if any attempt was made to remotely add, or alter files on my PC; a great little programme, but it would not run on 64bit Windows 7, unfortunately, so poor little "Scottie" had to be put down.
The lasting value of the thesis project was to analyze the invisibility of certain histories and to collect accounts of utility and meaning that fell outside the official purpose of this memorial site, and I still fantasize about using my written thesis as a basis for a walking tour or other supplemental material that would add or alter to a visitor's experience.
Their music is at best undistinguished, and large parts of their received choreography are formulaic, added or altered in the 20th century.
It is also about accretion: elements can forever be added or altered; a collage to which more and more is done may become turgid and unattractive, or newly beautiful.
The problem is that in 2008, instead of allowing the HFEA to make these decisions, parliament – at the then government's insistence – made it illegal to use an egg that has had even a tiny bit of genetic material added or altered in a fertility treatment.
The Artistic License in this case also requires that changes to the computer code be tracked so that downstream users know what part of the computer code is the original code created by the copyright holder and what part has been newly added or altered by another collaborator.
This number is bumped when significant features are added or altered.
