Image field spanning multiple rows

Hello,

I display an arrow image, pointing up or down, in a field.
Only the first row of the table shows this image, but the image is larger then a typical row.
L&L adjusts the height of the row to fit the image. This results in a large white space, line spacing, in the output.
Is it possible to let the field span multiple rows?
Or can I add the image to a header line and detach it from the normal flow of layout but specify the position as being (Y) the top of the table and (X) the left edge of the field?

The image occurs multiple times on a page because it is printed for each sub-table.

Currently I’m using L&L18.