Once the script is added, clicking "Manual Set Up" should create more STM objects as siblings of the first and automatically attach and set up STMPagination scripts on them - Keep in mind, if "autoLineCount" is on and the amount of text is only enough for one line, no text meshes will be created. If "linesPerTextMesh" is too high, no text meshes will be created. If "lineCount" is 1, no text meshes will be created. The script just formats STM objects and assigns STMPagination scripts automatically, so please send me a screenshot of the inspector if you're still having issues with it.