How to cancel regular qq sending?

How to cancel regular qq sending is as follows:

1. First, open QQ, and click "Friends Dynamic" in the open dynamic.

2. Then click "Call" in the pop-up window.

3. Then click the open clock icon button in the upper right corner in the pop-up window.

4. Then, in the pop-up window, click to open the inverted triangle behind the timer, and select "Delete".