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There are 2 kinds of library: Image Library and Video [N1] LibraryDocument Library.
A) Click on the Assets tab in the left navigation bar.
B) Create a new image or video [N2] folder document folder to store your assets (you will see a list of folders containing assets if they have already been created).
C) To upload an image or a video[N3] document, click on the folder you just created and then select 'add image'.
D) Browse your local files and then select the assets you want to upload.
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E) Hit Save to save the story you just created.
Widgets[N4] 
After defining Story Data and Video, you can further customize your story by adding widgets.
A) Click on the tab Edit Widget to access a list of the seven types of widgets from which you can choose:
- Quiz
- Prediction
- Minisite
- Poll
- Maps
- Voting
- Lottery
- User Photo
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B) Select the widget you want to add to your story by clicking on to preference.
C) Open up and edit widget preference to customize the widget both in terms of placement and content.
D) When you are done hit set preferences. That would allow you to save your settings.
E) Save story once more and then hit the go back button on the right end corner.
F) By clicking on the story you just created you will be able to access the Preview Mode. There is where you will pair the widgets with the story.
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J) Hit save and go back. You will see your newly created event with its widget in the bar on the right end.
[N1]I was able to find document library, and then video library.
[N2]document
[N3]document
[N4]I wasn’t able to find any widgets here.
[N5]I wasn’t able to find any widgets here.
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