You can define which object symbols the mini toolbar should offer for the relevant object type. You are offered only the object symbols for which the creation of a connection to the selected object type is allowed by the method.
Procedure
Select the object symbol whose object type you want to configure the mini toolbar for. The mini toolbar is shown.
Move the mouse pointer to the mini toolbar and click Add/Remove symbols. The dialog opens.
Click the symbols that are displayed in the mini toolbar, but that you no longer want to display. Their check marks are removed.
Click the symbols that are not displayed in the mini toolbar, but that you do want to include. A check mark is added to these symbols.