How to Increase the Slots on Your Minecraft Bedrock Edition Server ​
Open dashboard
Open your dashboard and select your Minecraft Bedrock Edition server.Open file browser
Go to the file browser.Open config
Open the fileserver.properties.Find entry
Look for the following entry:max-players=10Change value
Change the value to the desired number of players.
Warning
Important: Make sure that your server has enough resources (such as RAM and CPU) to support the increased number of players.