We have implemented a possibility to add Day Notes in a section OPS Timeline. It works in a similar way to the one in a section OPS Calendar.
Right-clicking on a given day in a Timeline view will generate a pop-up window where a Day Note can be selected.
Once the Day Note is added it will appear as a yellow vertical line. Hovering over the line will trigger a tooltip with the note text. The added Day Note will also show in OPS Calendar panel.