Hi, I would like to slightly redefine my question. In LyX we can write \matrix and then use M - m c i to increase Collins and also M - m d i for raws. I would like to create my own borders, from one side it would be a straight line and from the other side it would be ">". After i would define this, how could i create for it a shortcut? Define it in the bind's files?
Eagle
