Is there any way to increase code intellisense height in Visual Studio?

Answer 1

The intellisense pop-up window is resizable. It will let you increase the vertical height to display a maximum of 16 suggestions (and a minimum of 5). Once the pop-up is visible, hover your mouse over the bottom right corner and you will see the arrow cursor that indicates that you can click and drag to adjust the size of the pop-up.

Answer 2

When the intellisense box is displayed, you can use your mouse to resize the box to an extent. There is a limit to how big or small you can make it, but you can resize it both vertically or horizontally.