[O] meaning for _ (and perhaps ^) temporalily changed

[Rudolf Sykora]

Dear list,

is there a way to *temporalily* disable the default interpretation
of _ as a subscript?

I use filenames which include _ , while I have
many other places where I want the default behaviour
(I don't want to rewrite these with explicit {} and changing
org-use-sub-superscripts variable to {}).

Thanks
Ruda