disableSerialization; 
   
private _display = findDisplay 313 createDisplay "RscDisplayEmpty"; 

private _edit = _display ctrlCreate ["RscEditMulti", -1]; 
_edit ctrlSetPosition [0,0,0.3,1]; 
_edit ctrlSetBackgroundColor [0,0,0,1]; 
_edit ctrlSetFont "EtelkaMonospacePro";  
_edit ctrlSetFontHeight 0.03; 
_edit ctrlCommit 0; 

private _longestLineWidth = 0;  //Not needed
private _exampleString = "abcdefghijklmnopqrstuvxyz0134567890"; 
private _text = ""; 

for "_lines" from 1 to 20 do // Loop through all lines and find the longest one 
{ 
   _lineText = _exampleString select [round random 35]; 
   _longestLineWidth = _longestLineWidth max (_lineText getTextWidth ["EtelkaMonospacePro", 0.03]);  //Not needed
   _text = _text + _lineText + endl; 
}; 
_edit ctrlSetText _text;
_edit ctrlSetPositionW 0.2;
_edit ctrlCommit 1;