Swiss thousands separator not recognised/replaced

For some reason, Studio recognises a standard German thousands separator (a dot/point), but not the Swiss German separator (an apostrophe).

As a result, whenever a large number comes up in a Swiss German source text that I am translating into English, Studio doesn't automatically replace the apostrophes with commas, leaving me to manually replace them individually without recourse to auto-propagation.

Anyone know a solution or at least a workaround (search-and-replace isn't practical)?

Thanks in advance for your input!