Do OAF pages in general support dff context values to be defaulted from profile option?

I am not sure if this is the right community for this - please move if appropriate. I am getting mixed information from the knowledge base on whether or not OA Framework pages would - in general - support descriptive flexfield context values to be defaulted from a profile option. E.g. a DFF is set up to have default value for context based on :$PROFILES$.PER_BUSINESS_GRP. This profile has a numeric value. So the possible context values (each with their own segment structure) are set up with those numeric values. In forms that works fine; the right segment structure shows up automatically, based on the profile option - so the context segment does not even need to be displayed, as it gets defaulted correctly. But is that defaulting also supposed to work in OAF?