Can I convert tables to text boxes for a form?

Im new & I just spent alot of time create a form out of tables. Im hoping I can have the text boxes either latch on or replace the tables with the text boxes or something. I tried to manually add them. But I cant figure out the height of the tables. Everytime I check row height it says zero. I also cant line up the text boxes with the tables.

You can consult the manual:

English documentation

Or use this Wiki post:

Create a fillable form in Writer