File

Open

Open an existing bin file (the extension is .btx), or a composite file (the extension is .ctx) with Open.

Click File -> Open, or click  on the toolbar, or press Ctrl+O, to pop up the following window:

Select a file type and a file, and click Open to open the file.

Save

You can save a modified composite file with Save.

To save a modified composite file, click File -> Save, or click  on the toolbar, or just press Ctrl+S.

Close

This menu item closes the currently working file on the designer.

Click File -> Close, or click  at the upper right corner, or press Ctrl+F4 to close a current file.

Close all

It closes all the active files on the designer.

Click File -> Close all to close all working files.

Recent files

The item lists all recently opened bin files and composite files.

Click File -> Recent files to open a recently opened file directly. You don’t need to find the file through File -> Open.

Exit

Exit lets you exit the designer.

Click File -> Exit, or click  at the upper right corner to exit the designer.