Defining Shell Contours and holes

[Anonymous]

Hello!
I'm a student and I've been experimenting with the shell command, by watching a couple of tutorials on youtube I learned that the magic wand could be used when defining contours or holes on any kind of shell, but when I tried it, pressing space bar to enable the magic wand doesn't work, does anyone know how to enable it

Thanks!

[Dontknow]

Chema:
Done some experimenting myself with the magic wand and a shell.

Selecting the shell with the magic wand is no problem.
With spacebar or from the toolbar.
For creating a hole in the shell I think you'll need at least a reference line on the shell which I think is impossible to create.
And when I try to create a hole in the shell the magic wand doesn't respond with me as well.

But there is a special command to draw the hole in the shell.
More info here.