The plugin has the following general “Plugin Options”. They affect the global plugin behavior in different areas.
If you want to change the style of tables, you can enter those additional commands into the “Custom CSS” textarea. There are examples on how to change certain style aspects on the FAQ page.
Admin menu entry
Use this setting to move the menu entry “TablePress” (by default in the middle of the menu) to another place in the admin menu of the Dashboard of your site.