To delete a single monitor, select it under the Monitors folder in the Object Explorer tree and choose Delete from the shortcut menu.
To delete multiple monitors, open the Properties panel for the Monitors folder using the Monitors folder's Properties shortcut menu. Select required monitors in the grid using CTRL+Click or SHIFT+Click operations. Delete the selected monitors using Delete shortcut menu on the grid.
Note You cannot delete running monitors. You have to stop them first using the Stop shortcut menu.