I use DBPlanner (mode = plDay) and DBPeriodSource.
The number of days I'm showing is depending on the width of the monitor my client uses.
So for no problem.
Because my client is not working in the weekend I use PositionProps to show saturday and sunday in a different color.
Is it possible to make the positions for saturday and sunday smaller (because they will never contain items and now they are taking to much space) ?
I found the solution in the manual p. 21 : planner.positionwidths[]
Case closed !