[racktables-users] Adding or removing a row?

I have used the 'Racktables' tab wrongly in my first setup.  I used
the 'row' field for 'room'.  

Now I want to change it and I cannot see how to 
   
add a new row or delete row
or 

change the content of the field

When I click on 'Racktables' all options I get is:   Browse, History.

Regards
Johann

-- 
Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "For we wrestle not against flesh and blood, but  
      against principalities, against powers, against the 
      rulers of the darkness of this world, against  
      spiritual wickedness in high places. Wherefore take 
      unto you the whole armour of God, that ye may be able 
      to withstand in the evil day, and having done all, to 
      stand."              Ephesians 6:12,13

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