Thad: Thad, you can do about that by setting the time for example to 6 days +1 day per move, no vacation, max 6 days.
That means everyone starts with 5 days 'vacation' plus 1 day for the first move, and plus 1 day for each further move.

The problem with all these settings is that you often hurt the wrong person: For example, if I start a tournament three months before a longer travel, and my opponent drags alone his full time for every move, I will lose on time during my travel, even though I used only 6 hours in the whole three month.