There's apparently no default setting for vi, vim, elvis, gvim, etc. that you can select "out of the box." But you can create your own.

Go to IDE Options-->Keymap. Click "Copy" for the default Default keymap. Type in a name for it. Do not select it as "Active" yet or else the following will not work. First select "Apply" then continue.

Now select the new new keymap and start making the bindings map to your vi or gvim preferences. When you do this, the dialog "Current Keys" Add/Remove dialog will tell you if there area any conflicts with existing bindings.

Unfortunately, I don't see any way to make a distinction between visual and insert mode, which is a severe limitation for vi users. So I don't know how much value this keymap ability has for us.