Hi David,
yes there is.
In the WebServer procedure, Settings tab, Buttons tab.
All the "standard" buttons are there, and you can edit them as you please.
So for you, pick out the buttons you want to change, and set the "text" option to
''
(quote quote)
also I think you'll want to set the "class" for the button to
'nt-small-button'
Cheers
Bruce