Is it possible to automate the "preload stream" setting for an entity?

I have two IP security cameras, which are on at night, but in “privacy mode” during the day. I usually keep the preload stream setting checked, in case I need to quickly see what’s going on outside in the middle of the night.

My worry is that the stream is open during the day, taking up network bandwidth with black video. I’d like to enable the stream preloading option when privacy mode is off, but I’m not sure if that entity setting is automatable.