I'm trying to do something seemingly simple but can't work it out.
I have a collection to patch to a SharePoint list. I need to fill all existing rows with additional columns, all existing rows having the same value in those new columns
e.g.
colCollection1:
Title
Item 123
Item 234
Item 345
I need an AddColumns function to add two columns and also fill them down with the same value
Title ScheduleDay UserID
Item 123 220 ID345
Item 234 220 ID345
Item 345 220 ID345
Is this possible?

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