uloop-simulate-mouse-ui

Simulate mouse click, long-press, and drag on PlayMode UI elements via EventSystem screen coordinates. Use when you need to: (1) Click buttons or interactive UI elements during PlayMode testing, (2) Drag UI elements from one position to another, (3) Hold a drag at a position for inspection before releasing, (4) Long-press UI elements that respond to sustained pointer-down. For game logic that reads Input System (e.g. WasPressedThisFrame), use simulate-mouse-input instead.