You can switch between three styles of representation of the symbols in the right toolbar.

Icon only

Just the symbols with no additional text.

Icon with text

The symbols with their class or symbol names, or a user text.

List View

The symbols as a list again with their class or symbol names, or a user text.

The symbols can be shown in different sizes. The default size is 4.

If you move it to the very left the symbols may probably be to small.

And this is how it looks in the maximum size.

By default the symbols aren't ordered. They appear in order of the classes.

You can also choose A - Z.

Or reverse the order.