I have tried some things now, but there is this issue which seems different then the examples I see.
The example you showed is somewhat like this:
Let us say the OrderLines table is my MasterAircraft Table. As you notice, this example has DIRECT relation to the Dates via the OrderID field.
Now let us take a look at my example, it has INDIRECT connection to the dates (MasterCalendar2 3 and 4).
Thanks to your example I now understand the 'basic' example. However the this new problem I sketch is somewhat of a mystery. How can I solve this problem?