trouble downloading add on

Gary Metzler <gmtravel@...>

Hi All,
I am trying to download a few add ons one is the ocr and the other is the place marker.  I go to the add on manager and tab to get add on I then go to the one I want and hit enter.  It doesn’t get downloaded.  What can I be doing wrong?  Thanks for any help.  Regards, Gary kn4ox

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