A table in a .m plain text live script is stored as such
%[text:table]
%[text] | Column A | Column B |
%[text] | --- | --- |
%[text] | Value 1 | Value 2 |
%[text] | Value 3 | Value 4 |
%[text:table]
I suggest to document this in the plain text live script generation prompt:
https://github.com/matlab/prompts/blob/main/prompts/live-scripts-documentation/generate-plain-text-live-script.md