Pasting using the context menu opened via mouse should paste at the position of the mouse

[microbit-robert]

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Description

If the user pastes a block using the context menu opened via mouse, the paste position is the same as using Ctrl + V to the paste the block. This can often be on the other side of the workspace to the opened context menu. The block should probably be pasted at the position of the mouse pointer.

Reproduction steps

1. Open the Blockly keyboard navigation plug test page
2. Copy a block
3. Move the mouse away from the block
4. Open the context menu with right click
5. Click on paste
6. Observe the block being pasted on the workspace away from the current mouse pointer position

Stack trace

Screenshots

Screen.Recording.2025-05-23.at.13.28.47.mov

Browsers

No response

[rachel-fenichel]

Thanks @johnnesky!