Composing a Request Body in REST Console

Documentation
1

Is there documentation for composing the Request Body in the REST console?

For example, if I want to update the values in one column of all records matching a certain WHERE clause?

Or, if I want to modify a DATETIME value by adding a certain number of seconds to the existing value?

Thanks.

2

I believe documentation below can help you with your first task:

For example, if I want to update the values in one column of all records matching a certain WHERE clause?

https://backendless.com/docs/rest/data_search_with_where_clause.html
https://backendless.com/docs/rest/data_multiple_objects_bulk_update.html

Or, if I want to modify a DATETIME value by adding a certain number of seconds to the existing value?

About this question, unfortunately this operations cannot be done using the REST Console.

Regards,
Marina