Macro to act on selected text?

Would it be possible to make a macro to act on selected text? my use case would be wrapping things inside a calculate, or calculate table function you select the expression, click on the macro and magically the text is now wrapped around with the calculate/calculate table funciton, and the cursor is ready to add some filters! You should be able to use them while editinc measures, but also writting DAX queries and maybe even c# scripts? That would make the creation of dax scripts faster! PhraseExpander does something like that regards!