Layers
8VIM supports up to 6 layers.
Every language has at least one layer, the default one. Some languages can have multiple layers to handle specific characters like accents.
Activation
To switch to layer selection do: bottom
-> circle
.
Then go back to bottom
for the second layer. If you turn clockwise you change to the other layers.
Once you are happy with the layer go back to circle
and select the character as usual.