Entity over association not available for data view and reference selector (custom dropdown list)

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Hi,   This is part of my domain model :    I want to build a page where I'll have some attributes from the entity ReportExecution and multiple dropdowns containing the attributes SelectListExecution/ListValue grouped by SelectListExecution/ListTitle   So for example if I have the following data :           ListTitle       |     ListValue           My first list    |       Value 1      My first list    |       Value 2      My first list    |       Value 3 My Second list   |       Value 1 My Second list   |       Value 2   I would like a dropdown named "My first list" with all 3 values and a second dropdown name "My Second list" with 2 values.   From what I understood with my following domain model I should be able to achieve that with a reference selector but I have trouble setting it up because I cannot find my entity SelectionListExecution over association in my page.     From my limited comprehension I was expecting to find association with SelectionListExecution in the red rectangle.   Is there something that I'm missing ?  Any advice on how I could create the dropdowns mentioned above ?    Thank you for your help :)     ANSWER EDIT :  after the suggestion of changing my domain model, here's what works for my goal 
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Hello Thibaud,

 

Although i do not know all the context to give you full advice, here are some remarks that maybe will help you:

 

A dataview exepects one object, instead you can use a list view.

Instead of the association you could maybe use a datasource microflow or nanoflow

Take maybe an extra look at your domain model maybe you can simplify your model by for example create an extra entity with the following attributes display name; display title; display option instead of using hardcoded 1,2,3, '

 

Hope this helps to go in the right direction,

 

Good luck!

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The Association should be start form ReportExecution etity

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