1
First Step
Login to your Wepwawet Control Panel

2
Second Step
Select your Server

3
Third Step
Make sure to Turn OFF the Server

4
Fourth Step
Under the General Section, Click the Files tab

5
Fifth Step
Click the server.properties file

6
Sixth Step
Scroll down to till you see max-players: [value] and edit the [value] to your prefered number and hit the Save Content button

7
Seventh Step
Now, Head to the Console tab and hit Start

There you go, You have changed the maximum capacity of players able to join your Server!