table rows and Link to action - problem

Dear all!

I'm facing the following problem:

Each of my table rows can have 1...n values in one specific column. each of these entries are to be links (to action).

Is there a way to display these values in a drop Down list oder something like that? So that there will be one drop down menu in each table row. (I'm trying to avoid a tree UIElement and master-detail - Table references).

Is a modifiable simple type (created in Data Dictionary) dynamically filled (for each table row different)?

Do DropDownByKey/Index provide such a functionality? and how has got to be the context structure beneath these elements?

Best regards,

Christoph