1. In a digital medium environment for synchronized editing of simultaneously displayed first and second documents in a user interface, a method implemented by one or more computing devices comprising: opening and displaying the first document and the second document simultaneously in the user interface; receiving at least one input via the user interface to edit a first portion of the first document, the first portion of the first document corresponding to a first portion of the second document; subsequent to receiving the at least one input to edit the first portion of the first document, receiving at least one input via the user interface to begin editing of a second portion of the first document; responsive to receiving the at least one input to begin editing of the second portion of the first document, indicating correspondence in the user interface of the second portion of the first document to a second portion of the second document and synchronizing the second portion of the first document and the second portion of the second document, the second portion of the second document comprising a next sequential portion of the second document relative to the first portion of the second document, the indicating and synchronizing occurring automatically and without user intervention.
1. In a digital medium environment for synchronized editing of simultaneously displayed first and second documents in a user interface, a method implemented by one or more computing devices comprising: opening and displaying the first document and the second document simultaneously in the user interface; receiving at least one input via the user interface to edit a first portion of the first document, the first portion of the first document corresponding to a first portion of the second document; subsequent to receiving the at least one input to edit the first portion of the first document, receiving at least one input via the user interface to begin editing of a second portion of the first document; responsive to receiving the at least one input to begin editing of the second portion of the first document, indicating correspondence in the user interface of the second portion of the first document to a second portion of the second document and synchronizing the second portion of the first document and the second portion of the second document, the second portion of the second document comprising a next sequential portion of the second document relative to the first portion of the second document, the indicating and synchronizing occurring automatically and without user intervention. 8. A method as described in claim 1 , further comprising saving the first document to include the indications of correspondence to the second document such that subsequent selection of a feature to initiate editing the first document causes the second document to be opened automatically and without user intervention.