Using Create Collection Column node with variable column names


I’m trying to use the collection column to iterate over all columns in a table.
I create a collection, operate on it using the Java snippet to return a new array, and
then split back into the original columns.
This works, but the ‘Create Collection Column’ node needs to be reconfigured when
new data with different column names is passed. This is inconvienent when running in a loop.
Is it possible to have ‘use all columns’ option, or similar?