Cant load workouts in to my library and into my group library

I made a group, which makes me the admin. And now I want to add plans in to my library. I started with the plan How to guide. But I cant put this plan into my library, I get a red square with the text Not owner of the folder. All I can do is past empty folders into the library. Does it mean I dont have the rights to use the plan or does it mean that I dont have the rights to put things into Library?

Is there a explanation on how te build plans and how to make the plans public in your group? This part needs explanation!

You create your plan, go to your group, open your library and drag and drop the plan from the library to the shared field