Hi there!

I just installed the addon as it seems really cool, but, having a collection of almost 400 mounts, with a good 100 of them setup as favorite, it's very painful having to go through the list of mounts to disable them one by one.

A button in the settings allowing users to copy the journal's current setup would be great and would help a lot with initial setup.
This function should make this a trivial feature, i believe: https://wowpedia.fandom.com/wiki/API_C_MountJournal.GetIsFavorite

Thank you, have a wonderful day!

Edit: I had some time and ended up making it myself, and made a pull request for it:
#84

I think what I'd like to do with this is have some kind of "first use" popup to tell people they have to set a keybind or create a macro and also present an option to import the favorites like this.

A minor complexity (while I think to note it) is, how to deal with priorities for non-journal mounts (flight forms, items, etc) when initializing, since they obviously aren't in C_MountJournal.GetIsFavorite.