HI, newbie here, I have started to upload my tracks to AudioJungle, but I did not see anything about having those tracks as part of an Elements subscription. Are the tracks automatically available to Elements subscribers or do I, as an author, need to do something to be included?
TIA 
No - signing up to Elements as an Author is separate to the Envato Market sites (AudioJungle, ThemeForest etc). It works a bit differently for each item type, but in general there’s an additional layer of setup that includes ID verification and a portfolio review before your account is approved to upload items to Elements.
We’re not currently taking new Music or SFX author applications for Elements. When this changes, we’ll be announcing it to the community via email, forum posts and the author dashboard.