Feature request: stacked bar chart of project durations

[31SFX4]

Show the project/client durations as a timeline of stacked bar charts. User should be able to select grouping (days, weeks, months), set the start and end date and also filter for projects and clients just like in the report table, but the data should be shown graphically. So the X-axis are the days, weeks, months or years (depending on the grouping) and each stacked bar shows the duration of all the different projects on that day/week/etc. The total height of the bar will be the total duration, so that you can easily see how much time one has spent on different activities.