# Introduction
The main window is fixed on the screen and serves as the interface for batch operations, management, and utilization of your clipboard history.
Filtering: Supports filtering by app, filtering the current app, collection list filtering, and smart list filtering by multiple conditions.
Searching: Quickly search within the filtered results.
Selection: Left-click to select a single item; ⌘+click to add an item; ⇧+click to select all items between two selected items.
Utilization: Double-click to paste a single item; drag and drop or use the right-click menu for batch operations on multiple items.