General Toolbar MS
| 
         
       | 
                
         Rectangle Selection  | 
                
         Allows selection in rectangle mode on mouse drag.  | 
        
| 
               | 
                
         Lasso Selection  | 
                
         Allows selection in lasso mode on mouse drag.  | 
        
| 
               | 
                
         Structure Selection  | 
                
         Allows selection in structure selection mode on mouse drag. With this selection mode only whole fragments can be selected.  | 
        
| 
         
       | 
                
         Erase  | 
                
         Removes all structures upon selection.  | 
        
| 
         | 
                
         Undo  | 
                
         Reverses the last command or the last entry you typed.  | 
        
| 
               | 
                
         Redo  | 
                
         Reverses the action of the last Undo command.  | 
        
| 
               | 
                
         Cut  | 
                
         Removes and copies the selection to the clipboard.  | 
        
| 
               | 
                
         Copy  | 
                
         Copies the selection to the clipboard.  | 
        
| 
               | 
                
         Paste  | 
                
         Inserts the contents of the clipboard at the location of the cursor, without replacing selection.  | 
        
| 
               | 
                
         Check Structure  | 
                
         Checks and corrects chemical structures. See Structure Checker User's Guide for more details.  | 
        
| 
         
       | 
                
         Zoom In  | 
                
         Increases the canvas's magnification.  | 
        
| 
               | 
                
         Zoom Out  | 
                
         Decreases the canvas's magnification.  | 
        
| 
               | 
                
         Zoom Tool  | 
                
         Changes the canvas's magnification to a specific value. It can also do autoscale using named values: All, Selection.  | 
        
| 
               | 
                
         Help Contents  | 
                
         Shows MarvinSketch User's Guide.  |