How to send messages to the other party while watching the battle in Stimulating Battlefield

It is not possible to send messages to the other party in the exciting battlefield while watching the game. Watching the battle on the exciting battlefield, the other party said that they couldn't know because this function was not enabled in the Chinese version of the game.

But if you don’t like to be watched by others, you can set it up. Click the settings button of the game petition, and then click to enter.

Then among the options in the settings, find the basic settings, as shown below

Then click "Close" on whether to allow others to watch the game, so that others will not be able to watch the game. Moreover, others cannot interact with you while watching the game. If they can, they will know that you are watching the game.