How to enter a double prime character in Studio?

Hi all,

I need to use a double prime for measures in inches (e.g. 12″).
Unlike other special characters, I cannot produce this character in Studio by entering the ASCII code (ALT+8243). Works fine in MS Word, but not in Studio (2019).
Is there any chance how I can conveniently use this character in Studio without having to type it in Word and copy it over?

Thanks,
Stefan

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