Bob,
Dave Sand got the story correct while this was being typed!! -----
From the appearance only, since you did not provide the actual panel xml file, one is left to surmise that you have put the schematic in one or more "background icons." If so, then the normal editing functions of the Panel Editor or the Control Panel Editor will not allow you to access such icons. The background topic reoccurs every few years on this JMRI user's group forum.
If it is necessary to edit a background icon, a brute force workaround is to open the xml panel file with a good text editor and search for text that looks something like:
<positionablelabel x="0" y="0" level="1" ...
where your values for x and y may vary. (The values of x="0" y="0" indicate the upper left corner.)
It is the value for level="1" that you need to find and change to a higher number, say 2 or 3 but not 10 or above. It would be safe to assume that you have used many background icons, so it will be necessary to exert extreme caution to verify that the correct values for x and y have been discovered.
Save the result with a file with a new name. Then use PanelPro to select the changed icon. If it is the one that you intended to modify, edit, or remove then proceed and if necessary, repeat the process for one or a few background icons at a time.
Of course if you are really comfortable with the use of a good xml editor, once you have found the appropriate text, then other, if not so safe editing options are available.
Cliff Anderson in Baja SoCal
