sends expr to be executed by the Mathematica front end.
- FrontEndExecute[expr] sends expr to $FrontEnd via MathLink using LinkWrite.
- The standard Mathematica front end can handle only specific notebook manipulation commands such as NotebookApply, NotebookLocate, and SelectedNotebook. It uses the versions of these commands in the context.
- FrontEndExecute[FrontEndToken["name"]] executes named commands in the front end, typically corresponding to menu items.
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