Stacked bar chart presented as timeline for phases in project

Hi

I would like to present phases in a project in a stacked up bar chart.
I have attached a worksheet in order to easier explain how I want this to be presented in a chart (now only visualised by colouring merged cells).
The idea is to present the different phases stacked up on a timeline (x-axis) with only adjusting the duration of each phase in a table.
I was also hoping it could be possible to add new series (products/projects) with different start-up dates (months), and easy adjustable by either editing the start-up date (month) or duration of each phases in the table.
The x-axis should show all months from a pre-set start date (month).

Thank you!

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