To change the properties of a table in a drawing 
Change table properties to modify table content, appearance, layout, and update behavior. 
- Right-click a table, and click . 
 
- In the Table Properties dialog box, you can change the Table Style, Split Table, and Behavior options. 
 
- Click OK. 
 
 
 To join split tables 
 Re-connect tables that were split. 
- Right-click a table and click Table Properties. 
 
- In the Table Properties dialog box, clear the Split Table check box. 
 
- Click OK.