| name & dimensionality | kind | in/out | description | 
|---|---|---|---|
| string1 | CHR | IN | the first substring to be concatenated. | 
| string2 | CHR | IN optional | the second substring (if any) to be concatenated. | 
| string3 | CHR | IN optional | ... up to 10 substrings can be concatenated. | 
| var | CHR | OUT | concatenation of the substrings interspaced with LineFeed character. | 
Version 3.83, 2024-11-13