[Groff] refer question

[joerg van den hoff]

hi all,

is there a way to reset refer settings somewhere 'downstream' if the 
'upstream' defaults are no good?

specifically:

in my document I source a certain defaults file in which, upon different 
other settings, one finds:

...
.R1
database the_standard_database
.R2
...

now, I want to set in the _current_ document

...
.R1
database a_different_database
.R2
...

which by itself of course _appends_ the new database to the set of 
databases searched (and is searched latest).

can I enforce solely searching of the new database without eliminating 
the first one from the defaults file (which would be bad for other 
documents...)? i.e. is there a way to clear the variable holding the 
database string (well, what is it's name? :-) )

best regards

joerg