Unfortunately, I think I may have spoken too soon, as I've run into a small problem. :-) Using Wolfgang's suggestion of baselinecorrection:
\startbaselinecorrection\setupinterlinespace[line=5ex] .... \stopbaselinecorrection
I can no longer get footnotes which are in the Arabic paragraph to work. The footnote marker in the text shows up; but that particular footnote does not show at the bottom of the page, though a footnote from text outside of that paragraph do show, with their correct numbering. See attachments for an example.
does
\automigrateinserts
help?
It does indeed. Many thanks, Hans, for your quick responses and help! Kind regards, Talal
(concerning the grid ... at some point we can associate lineht/dp with a font ... it's rather trivial to influence)