要删除一个或多个绘图工具，必须先选中它们（选择 ROI 绘图工具）。复制 ROI 工具的按钮位于带此符号的下拉菜单中：
下面的符号代表 "删除"：
信息：
键盘上的 "删除 "键也可用于删除选定的绘图工具。
信息：
摄像机 ROI也可以删除。
To delete one or more drawing tools, they must first be selected (Selecting an ROI drawing tool). The button for copying ROI tools is located in the drop-down menu with this symbol:
The following symbol stands for "Delete":
Information:
The "Delete" key on the keyboard can also be used to delete selected drawing tools.
Information:
Camera ROI can also be deleted.