Combined Render is a Blender add-on from KVD built around two camera workflows. The Four Scenes Camera panel adds a camera to each checked scene at a distance you set, placing each camera and its linked empty in its own collection. The camera follows the linked empty, and 'To Scene' buttons let you switch between scenes to adjust cameras and settings.
The Object Cameras panel targets product-style renders. Selecting an object and pressing 'add view cameras' adds four cameras facing it for front, top, left and right views, switchable from the panel, each with its own settings. The cameras keep facing the object as it moves, and you can retarget them to another object using the track and center camera buttons. Both workflows render five images: one per camera or view plus a combined image of all four, with a configurable name, output path and resolution.
Released initially for Blender 3.0 through 4.2 and later updated for Blender 4.2 and 4.3, it lists compatibility up to Blender 4.4 and ships under the GPL license.