Crew Planning App - Add more tab beside Vacation

Hi folks!

I am trying to add more tab beside Assign Project or Vacation Option in Crew Planning App page i.e. “Training” or “Idle”.
Crew Planning Page link :

The concept is.
we need to add one more tab named “Training” and represent it with different color so that we can easily track the records in single glance.

Please Refer below image

It would be great if someone suggest any workaround or help me to add more tabs beside “Vacation” .