Save object and its related children with one call backendless 4
I have an object "Job" with multiple objects relations, where it's not reasonable to save them one by one then add them to the job object since in any case of internet interruption, half the job would be saved and the other half would no be.
Job Object has:
-Employee Objects (many)
-Box Objects (many)
-Truck Object (one)
-Driver Object (one)
-Client Object (one)
I cannot save them box by box because usually, each Job has a minimum of 50 Box Object, so it would be a big hassle and too many requests for saving one Job.
I Googled and Googled and Googled, and found that in Backendless 3 I could have just saved the Job Object and it's related children would be automatically saved and added as the Job as related Objects. Unfortunately, in Backendless 4 this does not seem to be an option, please correct me if I'm wrong.
I'm asking for a workaround to do this, as I've seen the Business Logic section of Backendless and I believe this might be done if I create a codeless or API for it, the only problem is that I don't understand Business Logic section.
Appreciating your help.