Mesh auto unhide when select another object Please tell me how to "permanently" hide part of a mesh.
In edit mode, I  select mesh of object "A" then hide, but when I select another object, that part of object "A" is automatically unhidden.
Any help would be really appreciated
One way is with the Mask modifier:




In edit mode, select the part of the object you want to hide (or the inverse; the part you want to remain visible)
Create and assign a vertex group in Properties > Object Data
Add a mask modifier and specify the vertex group. Click the invert button if needed.