Legacy Column Expression Node to new Expression Node

Good Morning

I have a Legacy Column Expression Node that I need to replace. I have tried, and failed, to move the work from one to the other. I think this is because I can not dynamically chose to replace a column (or I cant figure out how). I can not give you a work flow as it is part of a flow I use for work.

What the node does:

The node sits inside a loop that iterates through the columns of a table. These columns are dynamic and will change.

‘Column 0’ is the name of the column I am checking. ‘column expression’ is a bool - normally true.

Any help or advice on this would be great, thank you

Frank