Switches to the next document.
Switches to the next open EmEditor document. The behavior of this command depends on whether the Switch to Last Used Window for Next Document Command check box is checked. If it is checked, this command will switch to the last used window. If not checked, this command will switch to the next window displayed on the tab bar.
editor.ExecuteCommandByID(4245);
editor.ExecuteCommandByID 4245
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