I did not understand interface yesterday night. It is already working. I got confused with the hyperlink: "Add to matrix". I thought that I have to click it in order to add this descriptor to the matrix. Please change the message from "Add to matrix:" to "Matrix:" to avoid confusion.
Partly the confusion come from the fact that I had to enter quantitative character in 2 steps. I could not understand why? Only after I saved the name, I got an access to the default unit, and had to click button again to save the selection.
Since after saving the descriptor nothing happened (I was expecting a return back to the matrix interface). I noticed the link "Add to the matrix" on the top of the form. Only after clicking the button, I got back to the matrix. I expect that two additional steps - updating with default unit and return back to the matrix are the steps which could be eliminated to avoid confusion. I expected that just clicking save button will create a new descriptor and bring me back to the Edit matrix interface.
