Great idea! I would like to be able to make several diaries within the same application. Now we are forced to combine everything into one common project - a diary of sports activities, a diary of work events, a diary of personal reflections and analysis. Any serious professional software allows you to create separate projects for each task. At the same time, the database should be common for all diaries (projects). Even in Diaro there is such a thing! They called it just folders: Busininess, Family, Friends etc.