The mouse

1 - in the menu bar

To select a new action in the menu bar, you can move the cursor to the associated button, then press and release the left button of the mouse or use its accelerator key if it exists. The accelerator key is given near the name action, for example the accelerator associated with the item "create" is "CTRL C" (touch Ctrl and C pressed).
The name of the current action is displayed in bold and in red color in the menu bar.

2 - in the tree window

3 - in the canvas window

• Mouse buttons

  
  In the canvas window, the three mouse buttons are used :

  • left button
  
  To  apply the current action to an object, you have to select this object.To select an object, you have to move the cursor to a point belonging to its area then press the left button of the mouse.

  For example, you want to delete a box and a link in the canvas window:

  first, select the cut action in the menu bar or hit "Ctrl d"
  click on the first box and on the second one with the left button.
  • middle button
  
  To go down in a box or in port, press the middle button of the mouse.
  •   when you go down in a box, a new frame is opened and the text window appears, you can:
  • draw another boxes, links... in the frame, these objects are internal objects of the box.
  • type text in the text window and then click on the button "Ok", then the text is associated with the box.
  • when you go down in a port, there is no change in the canvas, but the Signal declaration associated with the port is displayed in the text window; you can modify this declaration and then click on the button "Ok" to associate the new declaration to the port.
  
  
  • middle button with Ctrl key
  
  when you press the Ctrl key and the middle button on a box, the interface of the Signal expression is displayed in the text window and can be modified.
  Example : if you click in the box with the middle button and the Ctrl key pressed, you will have in the text window the interface of the box; if a port has no declaration, it is represented in the interface with the sign "~".
  
  • right button
  To go up from an object (a box or a port), press the right button of the mouse.
  
  • Drag mouse

  
  some actions need to drag the mouse, it concerns the box creation, the object moving, the box sizing, and the glue. For these actions, you have to click (press and release) with the left button, drag the mouse and to terminate the action, click (press and release) with the middle button.