Here are the simple steps to start adding apps (content sources) to your Flows.
Open the Flow for Editing - How to add an App to a Flow
Locate the Flow you want to modify.
Click the Flow's name or settings to open the modification screen.
Add Content
Scroll down, if necessary, until you find the "ADD AN APP" button and click it.

Select the App/Content
Use the drop-down menu to choose the specific content App you want to include in this Flow.
βSet the Content Weight (Priority)
This is where you tell the Flow how important this new content is.
Set the Weight for the content using the options provided.
The weighting options range from "Very low" to "Very High."
Other key options include:
"Content must be seen": This content is the top priority and supersedes all other contents.
"Content is off": Hides the content.
"No weight": The content is shown only when there is empty time/space available in the Flow.
Tip: You can also click "ADD A FLOW" here if you want to nest one Flow inside another.


SAVE your changes
Once you've added your content and set its priority, remember to click SAVE to apply the changes.


