Patching Multiple Selected Values from ComboBox to Sharepoint List

[Anonymous]

Hello all, 

I am pretty new to the PowerApps, and I need help saving the values from multiple combo boxes to my SharePoint list:

1. I have 3 combo boxes and they have relationships (Primary Key and Foreign Key Pair) connecting, and they are ComboBox_Function, ComboBox_Category, and ComboBox_SubCategory.

2. There is a filter function for each combo box that displays the relevant values to the user. 

3. User can select multiple values in all 3 tables and submit them to the SharePoint list. 

The Goal: Saving the user all multiple inputs in a SharePoint list.

I was referring to the "2. Patching Multiple Selected Items to Multiple records or Line Items" from this website: https://www.powerplatformguide.com/post/patching-combo-box-inputs-power-apps

However, I can only save one combo box to multiple records in SP list. 

My desired SP List outcome is the following:

Submission ID	Function (Multiple Lines)	Category  (Multiple Lines)	SubCategory  (Multiple Lines)
1	FunctionA	Category A	SubCategory B
1	FunctionA	Category B	SubCategory C
2	FunctionB	Category A	SubCategory D
2	FunctionB	Category C	SubCategory A
2	FunctionB	Category D	SubCategory C

Currently, I have the column property set to multiple lines, but it can be changed if needed.

My question: how do I patch/save the user inputs into multiple lines of record in the SharePoint List like the example above?