How can I access hidden colums in my nintex start form and change them there

in order to prevent changes in QuickEdit I want to hide columns and read and change them in the workflow using XML Call and XML Update actions. In the workflow I can reach the columns, in the start form I do not succeed.

How can I read and edit hidden columns in the Start form?

Thanks for your help

Making a colums total (SUM) with Views



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