more ideas

_includes/store/keleo-controlling.md

@@ -71,6 +71,8 @@ If you need one of these features, do not rely on them being added, but contact
 If I decide to add one of these feature, it will be moved to the "Roadmap" section.
 
 ```
+- Prevent that certain days can be booked for vacation
+- Add first start- and last end-time as begin and end times to the PDF
 - Support for employees without expected working hours (e.g. hourly-based freelancers, who cannot used fixed working days) 
 - Working times
   - Allow to configure a [dedicated project](https://github.com/kevinpapst/kimai-plugins/discussions/112) that will be exclusively used for calculating attendance time