Layout and Clean Up on Selected Areas

# Layout and Clean Up on Selected Areas

## Description

Currently, the **Layout** and **Clean Up** tools in Ketcher apply settings to the entire canvas. Enabling these tools to operate only on selected structures would allow users to edit only the selected area without altering the entire canvas.

## Requirements

1. **When a selection is present** in the data received from Ketcher, the system shall identify the selected region and apply Layout and Clean Up operations **only to the molecular structures within this selected region**.

2. **When no selection is present** in the data, the system shall apply Layout and Clean Up operations **to all molecular structures on the canvas**.