Box-select Copy (box-select-copy): Draw a box to select words in the DSH dialogue area.

This article introduces the DSH Web client plugin **mi-chuan/box-select-copy**: press and hold the Alt key and the left mouse button to drag a rectangular selection box, then release the mouse to copy all text within the box at once. It supports Tab completion between rows and columns, adapts to light and dark themes, and allows cancellation with Esc. The article provides four installation methods—GitHub, npm, Release, and Local Clone—along with typical usage, the scope of application, and limitations such as clipboard permissions. It also reminds users to verify the source code and the MIT license before installation.