I use Calc to build individual question lists that I export to PDF as a form, which works beautifully, EXCEPT…
When I need to add new lines above existing controls, they do not stay anchored to their cells, despite having chosen “anchor: to cell” from the control’s context menu. I have also tried “anchor: to cell (resize with cell)” with no luck.
Also, when I copy/paste a checkbox from one cell to another, the default anchor position often turns out to be located in a cell other than the one that I just pasted it into. Why?
I have had the additional problem of text boxes disappearing after saving and re-opening the document. This problem has not affected check boxes.