I used SES when adding a matrix editor to gnu-apl-mode. When editing a matrix, it opens it as a SES document and when closing it it automatically updates the un

I used SES when adding a matrix editor to gnu-apl-mode. When editing a matrix, it opens it as a SES document and when closing it it automatically updates the underlying variable. You can see it in use here: https://www.youtube.com/watch?v=yP4A5CKITnM https://www.youtube.com/watch?v=yP4A5CKITnM