After you create shared parameters, you cannot rename them or change their type. You can do the following:
To view the properties of a parameter, such as its value type, click Manage tabSettings panel (Shared Parameters). In the Edit Shared Parameters dialog, select the parameter from the Parameters pane and click Properties from the Parameters group box.
To move a parameter to another group, click Manage tabSettings panel (Shared Parameters). In the Edit Shared Parameters dialog, select the parameter from the Parameters pane and click Move from the Parameters group box. Choose another group from the menu and click OK.
To delete a parameter, click Manage tabSettings panel (Shared Parameters). In the Edit Shared Parameters dialog, select the parameter from the Parameters pane and click Delete from the Parameters group box.