Hey @Ebnazer! Custom columns are a little trickier to access than regular columns.
But this syntax should hopefully work for you:
{{table1.columnMappers['Custom Column 1'][table1.selectedRow.index]}}
We're first accessing the custom column through the .columnMappers property then grabbing the correct value by passing in the index of the selected row. Here are our docs on custom columns and here's a link to a community post with a couple examples of using (or not using) custom columns.
Let me know if you have any questions!
