ColumnDistance Node

Could we provide to ColumnDistance node a Matrix of distance(by providing custom distances for chars)?

Not sure I understand. Can you elaborate?

So, I use Distance Matrix Reader to read a matrix of distances between chars from a csv file, for example:
Key;A;4
A;0.0;0.5
4;0.5;0.0

After this I want to apply these distances while calculating distance between two columns, so the cost for operation between 4–> A will be 0.5 and not 1.
For different chars groups I give a different distance.
So, I want to specify a cost of operation(deletion, insertion, exchange) for char groups and not for column.