Shift-F3 is supposed to do the same thing on a Mac, without the need for a macro. See: https://support.office.com/en-us/art...1-a6e3e1284b25
If that's not happening for you. you may have a faulty Office installation, or some other process may have taken over the Shift-F3 shortcut. You should check out what that shortcut is assigned to and, if incorrect or unassigned, correct it.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Sorry for this late answer.

You were right : I've made a few changes (randomly I must say, as nothing seemed relevant), and Shift + F3 works again !

Otherwise I've discovered that wdNextCase could have done the job.

Thanks.


PS : I don't know how to declare this thread is solved...