Thanks you for your answer, Yes I understand both perfectly. I think some people (like me) would like to connect them, others would not want to bring them together. But how to get the hierarchy (or the families) used by org agenda with a function like "org-get-tags" ? PS: sorry for the bad vocabulary, I followed the same name as the wiki, I should have been more careful and given more details. Is my question clear enough? Le dim. 28 août 2022 à 21:15, Daniel Fleischer a écrit : > Cletip Cletip [2022-08-28 Sun 18:34] wrote: > > > I may not have been specific enough: > > I want the tags also inherited with this "method" > https://orgmode.org/manual/Tag-Hierarchy.html. > > I think these are 2 mechanisms that only share the name "hierarchy". One > is headline hierarchy: a headline shares the tags of its ancestors. It's > local information, it's about the categories this headline are part of > because of its location in the document. > > The other mechanism is for grouping tags into families and is used in > the agenda; each family has a representative and you can search for it > instead of searching all the individual members. > > I think it makes sense, but you might want these to be related. > > -- > > Daniel Fleischer >