A bunch of related rows in a Single Tab of the App

Hi guys , I really need to get this solved!
So my requirement is Suppose Cell A2 Has a Campaign Name
And relating to that campaign name it has series of Influencers in different rows

So how do I get all this bunch of rows in a Single Tab of the App?

Also I will be giving my employees to enter cost beside each influencer

In the Data Editor
Two tables, Campaigns and Influencers, create a relation between the tables.

In the Layout Editor
On the detail screen, add a collection with the relation as the data source.

Hi Nathanaelb,
Thanks for a reply,

May i know how to create relation between tables, i am a new user at GLIDE