OK, you went there fast. You can't set the temperature higher than 66 degrees, but you can get a temperature controller that you can set the temperature you like on and it will power up the unit when it goes above that temperature, thereby cooling it back down. Then when it goes below your temp, it will shut the unit off. When the 281e starts up, though, it always starts at 54 degrees, so it will cool at that temperature until it gets back to your set temp. Saves on the run time of the wineador and theoretically the lifetime of the unit.
Here is a link to the one I bought for this purpose: Johnson-Controls-Digital-Thermostat-Control
You are getting in the advanced stuff, though (read: more $). Some B/SOTLs just put a cheap $5 timer on the unit and have it power up 5 minutes every hour and I hear that can be pretty consistent. Haven't tried that, though.