Adding tables
You can add tables by clicking on the "Table" button in the toolbar.
Choose the first option, labelled "Table". You can now choose the grid size of your table. Resize your table by dragging its points or the inner lines.
Editing your table
You can edit the table you created by placing your cursor on the table and subsequently clicking on the "Table" button in the toolbar. Choose the second option, labelled "Table properties".
Here you can change the size and alignment of your table, as well as edit the border. It's also possible to give your table a different look, using the "Class" label. More options are available if you use HTML code.