DashboardCanvasService.createSplitCommand Method
        
 Create a split command.
 
         
        Parameters
        
            - templateCell
            
 
            - 
                
Type: TemplateCellViewModel
The template cell view model to split. 
            - isHorizontal
            
 
            - 
                
Type: Boolean
True to split horizontally. 
            - isNotUndoable
            
 
            - 
                
Type: Boolean
 True to make this command not undoable  
            - suppressWarning
            
 
            - 
                
Type: Boolean - May be null
(Optional) True to suppress warnings. 
            - suppressConsoleWarning
            
 
            - 
                
Type: Boolean - May be null
(Optional) True to suppress warnings in the console. 
        
        Return Value
        
Type: Command - May be null
 The split command, if possible, otherwise null