Tag-Tag $replace of double backslash

[ohrenkino]

See e.g.here:

Cannot replace double back slashes ( \\ ) using simple Replace action

I tried a simple replace where I was trying to replace a " \\ " with ", " but the action does nothing. I assume this has to do with \\ signalling separate fields. Is there a way to get around this? I thought I had replaced " \\ " before, but I cannot find anything in my notes.