#. Go to *Leaves > Configuration*
#. For each leave type, you can mark:

   * **Exclude Rest Days**: If you want to remove for the total number of days
     those which are not workable.
   * **Compute Full Days**: It will compute days in the interval as full,
     independently from the starting/ending time.

#. For being able to manually change number of days, you have to be
   *Leave / Manager*. If not, the field will be read only.