Currently it is not possible to select columns for the String Manipulation (Multi Column) by data type, only by manual selection, wildcard or regex pattern:
It would make the node considerably more useful if it was possible to select by column type, particularly as any selected set of columns is likely to be the argument of a function within the expression and as such likely to be all of the same type.
It would also mean that the node could be re-used by copy-paste or in a component/metanode on different input tables, or when an incoming table spec changes slightly without reconfiguring.
Yours,
Steve
