“element_position_settings” sets the positions of screen eleements.
Available options
1) z_index
2) buttons
3) elem_others
Examples of configuration
Example 1
For a page that has its user interface control in the top right area.
{"z_index":"65000","elem_others.style.width":"1000px","elem_others.style.top":"300px","fixed_part_of_utterance.style.width":"800px"}