Keep details when you lower and upload resolution?

[chalke]

Hello Everyone!

Could anyone tell me how the person in the video managed to keep the details of the mouth when it came down and raised the resolution? (minute 3:12)

//youtu.be/1TLDn5d4knA

I apologize if the question is not understood, i do not speak english very well and i’m using google translator ^^’

[AlexxCentral]

Yes, this is a typical workflow:
The person just went to the lowest subdivision level (SDiv1) and after changing the shape went again on the highest.
You can sculpt on lower Subdivision levels without destroying the details of the highest Levels.