Add new column in the matrix

Hi!

Is it possible add a column in the end of a matrix, for example:

id

Last Name

Salary

Notes

employee

Can I add a column "Notes" in the a matrix?

Thanks in advance!!!

the only way to have setup you've suggested in a matrix is if there is a static group on the columns. With the static group in place, just right click the group and select add column, then just leave the field empty.