How to off a mirroring for finished object's gizmo?

Hi! english is not my native language so i can say something odd and misunderstand your words…
Created a figure, edited it using a mirroring mode. Now i want to off a symmetry for ready model, but not for brushes but for gizmo. How can i do it? I searched for it on symmetry section but found nothing. Also found a topic with similar question here and it didn’t help too (it adviced to on the “left to right” button or smth else)

Validate the mirror node - KEEP INSTANCES