I want to create a document where I would type certain text only once (MyText) and it will be automatically updated on multiple places in the same doc...
MyText is not a fixed text (I don't want to insert a predefined text).


I've tried using a text form field and REF fields but that only works when I protect the document, which blocks me from editing the rest of the text ?

Does someone knows how to do it?

You could use a content control, which does not require the document to be protected, rather than a form field.

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Graham Mayor - MS MVP (Word) (2002-2019)
Visit my web site for more programming tips and ready made processes www.gmayor.com

Thank for the quick reply!
Is this functionality available on Mac version also?
seems I can't figure out where to start from...

It has been more than fifteen years since I've used a Mac version.

Look at the Document Property Content Controls under Quick Parts as described in Repeating Data (Populating Multiple Like Fields).