Help System (web edition)

LIST REPLACE <name_of_list>,L1,L2
replaces all the occurrences of the text given on the edit line L1 by
that given on line L2. Even shadow characters are observed.
However, LIST REPLACE is not able to create new shadow lines. Hence,
cases where L2 has shadows but L1 not are not allowed.

For cases where trailing spaces should be observed, a generalized
form is available. Its syntax is
LIST REPLACE <name_of_list>,L1,L2,len1,len2
where len1 is the length of the old string and len2 that of the new one.

  L = More information on LIST operations