Your image shows the Articulations palette. As Daniel R (and I, in your duplicate posting) said, the fermata is in the Breaths and Pauses palette. I'm afraid I don't know what it's called in Portuguese, though Google Translate suggests "Respirações e pausas".
Comments
The fermata is in the Breaths and pauses palette.
Handbook: https://musescore.org/en/handbook/4/breaths-and-pauses
In reply to The fermata is in the… by DanielR
But there is no FERMATA signal in my version 4.4.4 of MUSECORE - as you can see in the image! How do I find it?
In reply to But there is no FERMATA… by cesnog
Your image shows the Articulations palette. As Daniel R (and I, in your duplicate posting) said, the fermata is in the Breaths and Pauses palette. I'm afraid I don't know what it's called in Portuguese, though Google Translate suggests "Respirações e pausas".