Hi All,
I am involved in a project which aims to digitize the process of collecting Idea proposals and storing all in a repository.
As of now, the team to which I'm giving support in this project uses an Excel template as data input and a shared folder as repository.
My idea is to use PowerApps as data input and a SharePoint list as repository.
In the Excel, among other info, is present a table to be filled like the following one:

At the beginning my idea was to create a list with 44 columns (every index X every period) and then create either a table in PowerApps with 44 textinput boxes or a form mapped to the list and send all data through a SubmitForm.
I've received a suggestion to change the list structure initially thought in a column oriented one like the following example:

Unfortunately, I’m totally stuck and I can't figure out either how to replicate the excel table in PowerApp or how to link PowerApp to a list with only 4 columns.
Any help will be appreciated.
Thank you!