Can't record segments from a continuous recording

Hello!

I’m trying to capture a couple minutes of a continuous recording from my E340 Floodlight Camera. I can view the entire day via the playback button, but when I hit record and drag to the end of the clip I want to record, the recording stops and only saves a few seconds. In fact, if it takes me 5 seconds to hit record and drag, I get 5 seconds of recorded video. If it takes me 10 seconds to do this, i just get those 10 seconds. I bet if i hit record and just watched it for 2 minutes id get what i want. But what happens when i need 10 minutes? I have to sit and wait 10 minutes?

Am I doing this wrong?