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Zoom out of a 3D field
Hi everyone,
I’m sorry if I’m repeating a question, but I can’t find it anywhere online. I would like to zoom out of the 3d field in my preview window. Yes, I’m having a hard time explaining, very sorry for that.
In a tutorial I’m watching a guy has this scroll thing:

What he does is very simply zoom in and out on layers in 3d with this thing, but I can’t find this scroll anywhere.
How do you adjust zoom in preview? Or do you actually need to resize all layers every time you want to see a detail in 3d (such as aligning objects)?
Thank you very much and sorry for the confused explanation!
Ajda