In Cura, this setting is available under the “Special Modes” tab. Just check the box to enable it. Once activated, make sure you load a model that has a continuous geometry, similar to a vase or a cylinder. When you hit the slice button, Cura will slice the object to have just a single wall, a solid bottom, and no top surfaces.
Note that in vase mode, you can only load a single model at a time because the nozzle traces a single continuous path. This means retraction doesn’t occur: The object is made of a long, unbroken string of filament laid on top of itself, turn after turn.