This feature is implemented in 1C:Enterprise version 22.214.171.1248.
We have implemented access to the data composition system from 1C:Enterprise script on the mobile platform. Now you can create a data composition schema template in Designer and generate reports on its basis. You can also use 1C:Enterprise script to configure custom filters in the composition system and retrieve data from the database for further processing.
Previously, some parts of data composition were present on the mobile platform. But, firstly, they were not sufficient for proper working with reports, and secondly, they could not be used from 1C:Enterprise script.