I created an object using the mirror modifier around the global x and y axis, but since I started adding cylinders intersecting one of the mirror planes I already applied the modifier.
Now I want to edit the mesh, while still keeping symmetry in the y-direction, in which the object is still completely symmetrical. I read you can do this through Mesh --> Mirror --> Mirror Y, but when I click this and edit a vertex, nothing happens (neither for x nor z).
I am sure the geometry is exactly symmetrical as it was created with the Mirror modifier around the global axes. Strangely when I click Snap to Symmetry it says
0 already symmetrical, 0 pairs mirrored.
Can anyone tell me what's up, or if there is an alternative for what I'm trying to achieve?
It is all one object and one mesh.