How to make all QQ calls visible only to yourself?

The method of setting all presentations to be visible only to oneself is as follows (taking QQ20 19 version of windows 10 system as an example):

1. Open QQ, click the five-pointed star icon at the top of the interface and enter the QQ space.

2. Click the Settings button on the upper right of the subsequently opened interface, and then click the Permission Settings button.

3. Click "Who can see my space" on the left side of the permission setting interface.

4. Then click "Only yourself" on the right, and then save it, and set all the meetings to be visible only to yourself.