plotting - Combine absolute and relative (scaled) coordinates

I am using Inset to add an Epilog to a plot. The position of the images (in my case: framed numbers) can be specified as an option of Inset.

I would like the y-coordinate to be the same for all Inset elements (they are created via Table), relative to the plot size. Say, for example, it should be the y-coordinate of Scaled[*,0.9]. The x-coordinate should, for each element, be an absolute value, depending on its position in the table.

While I know how to specify relative and absolute coordinates, also as functions of the table position, I can't get Scaled to work for only one coordinate: specifying my Inset coordinates via something like

{*abs. value*, Scaled[.9]}

yields the following error message:

Coordinate {*abs. value*, Scaled[0.9]} should be a pair of numbers, or a Scaled or Offset form.

Any help on this?

---

Update: I also tried snippets like Scaled[*some value*,.9][[2]] to extract the y-coordinate, but to no avail.