Objects are created with the create menu . All objects have popup menu's, which are accessed by right clicking on the object's icon. The panel shows the object's current mode and lists the hot-keys the object accepts. Some object don't have any special modes, the delete and clone command is all that appears. Objects that are not connected, don't do anything.
Many objects have pins that a require a connection.
If these pins are not connected, the object does nothing. See Objects for complete descriptions. The Create Menu Right clicking on the workspace will call up the create menu. Select Changes to select mode , allowing various editing operations. Paste Paste the current contents of the clip-board.