This is the first window to open when CS+ is launched. This window is used to operate various components (design tool, build tool, etc.) provided by CS+.
 
The following items are explained here.
This area consists of the following menu items.
| Peripheral Functions panel/Code Preview panel-dedicated item Outputs report files (a file containing information configured using Code Generator and a file containing information regarding the source code). 
 
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| Output panel-dedicated item Saves the message corresponding to the specified tab overwriting the existing file. | |||||
| Output panel-dedicated item Opens the Save As dialog box for naming and saving the message corresponding to the specified tab. | 
| Property panel-dedicated item Cancels the effect of an edit operation to restore the previous state. | |
| Property panel-dedicated item Sends the character string or lines selected with range selection to the clipboard and deletes them. | |
| Property panel/Output panel-dedicated item Sends the character string or lines selected with range selection to the clipboard. | |
| Property panel-dedicated item Inserts the contents of the clipboard at the caret position. | |
| Property panel-dedicated item Deletes the character string or the lines selected with the range selection. | |
| Property panel/Output panel-dedicated item Selects all the strings displayed in the item being edited or all the strings displayed in the Message area. | |
| Code Preview panel/Output panel-dedicated item Opens the Search and Replace dialog box for searching strings with the [Quick Search] tab selected. | |
| Output panel-dedicated item Opens the Search and Replace dialog box for replacing strings with the [Whole Replace] tab selected. | 
| Project Tree panel-dedicated item Opens the Project Tree panel. | ||
| Property panel-dedicated item Opens the Property panel. | ||
| Output panel-dedicated item Opens the Output panel. | ||
| Code Preview panel-dedicated item Opens the Code Preview panel. | ||
| Project Tree panel-dedicated item Displays the help of Project Tree panel. | |
| Property panel-dedicated item Displays the help of Property panel. | |
| Peripheral Functions panel-dedicated item Displays the help of Peripheral Functions panel. | |
| Code Preview panel-dedicated item Displays the help of Code Preview panel. | |
| Output panel-dedicated item Displays the help of Output panel. | 
This area consists of multiple panels, each dedicated to a different purpose.