Question - How do I add a training day?
Answer - Go to Admin>Config>Core Setup>Holidays
At the bottom of the screen click on the Holiday dropdown and select "Training"
Enter the single date of the training into both Start and End for example 03/01/2019
For two consecutive days, enter 03/01/2019 for start. 04/01/2019 for end.
Click on Add Holiday. Done.