I would like to be able to rename a text in a whole Balsamiq project (all mockups within a project). Often we use made-up data in the various mockups. When we want to change this data, we would like to do a search and replace so the new data text is available consistently throughout all mockups.
Currently, it involves manually search for text and editing the text in all mockups (tedious, easy to miss one). Or export each mockup separately to JSON, search/replace in a text editor and import back into the project (very tedious).