Hi Ugur,
I don’t think you can do that. Model Maker, as of today, doesn’t have a stop and resume option.
you have a couple of options:

make sure you’re using a GPU for training. This makes a huge difference in execution time
run the same notebook on the cloud (eg: GCP) with a higher spec machine. This way you can keep the machine turned on during the process. The drawback is that you have to pay

Object Detection is a complex task and it’s expected that it would take a long time to finish, even with top HW spec.
@Yuqi_Li any other suggestion?