Not clear at all. Can you make a scree shot of a mock-up?
Thanks to all for responses.
Laubender, I think your answer is the most straightforward and I'll go with it.
Willi Adelberger: If you know of an online tutorial for anchored frame, I'd love to hear about it..
You can copy or cut any frame into the clipboard and change to the text tool, insert it into a text and paste the clipboard into the text, that's an anchored frame or object.
You can also take the small square at the top of a frame and drag it into the text, then this frame becomes also an anchored frame.
You can adjust and change the type of anchored frame in Object > Anchored Object/Frame > …
You can save the properties of the anchored frames in Object Styles (Window > Styles > Object Styles) and apply it easy by clicking on any anchored frame. You should use it.
@gcruls – yes, you should use anchored text frames;
You want different strokes on top, bottom, left or right of the frame.
Now or later in the design process.
For that you could use a table with one cell.