Having "s.l." (sine loco) in the bibliography

In some cases, no information is available on the location of a publication. E.g. in a book or article no publication information is publicized. Is it possible to have Zotero enter "s.l." (sine loco, Latin for "without a place")?
Until now, I've solved this (minor) shortcoming entering "s.l." explicitly in the location field.

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