1. Drag the orange square over the blue square
2. Press the relevant modifier keys for your platform
3. Continue dragging over the pink square
4. Release the drag, then the keys
5. Check that the correct drop effect is produced in each case. If the mouse cursor can change to indicate the final type of drop effect that will take place, it should change to the relevant type (the one in bold) once the modifier keys are pressed.

Windows
Modifier | Drop effect
--- | ---
None | link
Ctrl | link=>copy=>none
Shift | link=>move
Alt | link
Ctrl+Shift | link
Ctrl+Alt | link
Alt+Shift | link
Ctrl+Alt+Shift | link

Unix/Linux
Modifier | Drop effect
--- | ---
none | link
Ctrl | link=>copy=>none
Shift | link=>move
Alt | link
Ctrl+Shift | link
Ctrl+Alt | link=>copy=>none
Alt+Shift | link=>move
Ctrl+Alt+Shift | link

Mac
Modifier | Drop effect
--- | ---
none | link
Ctrl | link
Shift | link
Option/alt | link=>copy=>none
Command | link=>move
Ctrl+Shift | link
Ctrl+Option | link=>copy=>none
Ctrl+Command | link=>move
Shift+Option | link=>copy=>none
Shift+Command | link=>move
Command+Option | link
Ctrl+Shift+Option | link=>copy=>none
Ctrl+Shift+Command | link=>move
Ctrl+Command+Option | link
Shift+Command+Option | link
Ctrl+Shift+Command+Option | link