Cant configure editor, doesn't save parameters?

Reading the user manual for hugs.... (running on fedora c5)
Hugs doesn't seem to be set to use a particular editor,
I tried following what it said in the manual...

":set -E"vi +%d %s""

it accepts it... and if i then type ":e" it does open the editor.
but if i close hugs, re open it, type ":e", it goes back to asking for an
editor to be configured first....
Is the configuration not permanent?

Surely I dont have to type this in every time... ?

Thanks alot for your help :)

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