InTouch CA600 usage

I have several Intermatic InTouch CA600 devices installed around my home. The usage modes are obvious: instant on/off by pressing once up or down, and light dimming by holding the up or down buttons.

It seems like they also allow a gradual fade-out of the light over a span of 5 seconds or so, as I’ve triggered that mode a few times by mistake. Anyone knows how to do that on purpose? The documentation included at purchase doesn’t seem to have any indications on this.

Did you ever find anything on these CA600s? I’m trying to figure out my options with them…ramp rates, etc…