Hi,  I have just started to take a look at ProjectLibre and have a question regarding changing resource availability.  I would like to set the availability for individual resources to 0% for example when people take vacations.  The Resource Information form has 'Availability', but if I enter a start date with 0% and then a later end date with 100%, there is no change in the resource availability displayed in the resource histogram and tasks are not lengthed to allow for the vacation.  Any suggestions as to what I should be doing would be great.