How to extend number of DIVI columns (more than 6)?

Step 01: Include the below CSS to theme options

/* Custom Columns */
.ten-columns .et_pb_module {width: 10%; float: left;}
.nine-columns .et_pb_module {width: 11.11%; float: left;}
.eight-columns .et_pb_module {width: 12.5%; float: left;}
.seven-columns .et_pb_module {width: 14.28%; float: left;}
.six-columns .et_pb_module {width: 16.66%; float: left;}
.five-columns .et_pb_module {width: 20%; float: left;}
.four-columns .et_pb_module {width: 25%; float: left;}
.three-columns .et_pb_module {width: 33.33%; float: left;}
.two-columns .et_pb_module {width: 50%; float: left;}

@media (max-width: 980px){
  .ten-columns .et_pb_module {width: 20%;}
  .nine-columns .et_pb_module {width: 33.3%;}
  .eight-columns .et_pb_module {width: 25%;}
  .seven-columns .et_pb_module {width: 33.33%;}
  .six-columns .et_pb_module {width: 33.3%;}
  .five-columns .et_pb_module {width: 33.3%;}
  .four-columns .et_pb_module {width: 50%;}
  .three-columns .et_pb_module {width: 33.33%;}
  .two-columns .et_pb_module {width: 50%;}
}
 
@media all and (max-width: 767px) {
  .ten-columns .et_pb_module {width: 25%;}
  .nine-columns .et_pb_module {width: 33.33%;}
  .eight-columns .et_pb_module {width: 25%;}
  .seven-columns .et_pb_module {width: 33.33%;}
  .six-columns .et_pb_module {width: 50%;}
  .five-columns .et_pb_module {width: 33.33%;}
  .four-columns .et_pb_module {width: 50%;}
  .three-columns .et_pb_module {width: 33.33%;}
  .two-columns .et_pb_module {width: 50%;}
}

@media only screen and (max-width: 479px) {
  .ten-columns .et_pb_module {width: 50%;}
  .nine-columns .et_pb_module {width: 50%;}
  .eight-columns .et_pb_module {width: 50%;}
  .seven-columns .et_pb_module {width: 50%;}
  .six-columns .et_pb_module {width: 50%;}
  .five-columns .et_pb_module {width: 50%;}
  .four-columns .et_pb_module {width: 100%;}
  .three-columns .et_pb_module {width: 100%;}
  .two-columns .et_pb_module {width: 50%;}
}

Step 02: Add the relevant class to your row, depending on the number of columns needed.

Step 03: Remember to only keep one column in the DIVI row settings and use DIVI modules as columns. That’s it Happy Coding!