eclectic was telling us:
eclectic nous racontait que :

Display the Forms toolbar (View > Toolbars) There is a frame icon on that
toolbar (the seventh one from the left).
Select the paragraph and apply a frame to it. Then drag the frame where you
want it in relation to the preceding paragraph.
Finally, select the whole text in the frame (Including the last ¶) and
create a style based on the selection. So, later, if you want to position a
paragraph in the margin, just apply that style to the paragraph.