Copy fullpaths of all selected files in source using Evaluator

I am trying to copy all of the selected items full file paths in source and additionally replace \ with /, the following works but only the first item path seems to get copied:

@nofilenamequoting
Clipboard SET {=RegEx(filepath,"(.*)\\(.*)#","\1/\2")=}

The Clipboard COPYNAMES command has a REGEX argument for doing that. You don't need to use the evaluator at all.

Edit > Copy Other > Copy Full Pathnames (Double Backslashes) in the default toolbars is an example of how it works.

Okay will look into that, thanks.