The only way to use this is to preheat the oven, and then slide each board in for a set time, and remove.
That doesn't allow you to do the ramp - hold at 180 C - ramp - hold at 240 C (or whatever) - cool
profile. But, lots of people have reported pretty good results with kitchen pans on a hotplate, so it likely will work once you find the right combination of temperature and time.
You will have to come up with some scheme to place the board in a hot oven and then remove the board without jostling it too much, while the solder is liquid.
I cool the boards on the oven rack until it is down to around 100 C before removing from the oven. My toaster oven heats and cools the boards a lot faster that your lab oven could, by IR radiation.
Jon