Interaction and Dashboard columns, Midi...

I have an unexpected behaviour with Dashboard columns when I map an interaction to launch a column.

Let's say : I map a midi note to launch the column n°5 (which I rename as "LA 5"), it is ok.

Now, I insert a column before the n°5. 

The midi note will play the N°5 and not "LA 5" which became N°6...

(Obviously, the problem is the same if I add a column after the N°5 and I have mapped a midi note to a further column let's say the N°7)

For me it's a real issue, because I work on plays and we can start working on act2 before act1 so I always need to insert columns, and secondly the actual midi note is sent by musicians so I have to remap these notes with them several times a day ;( 

By the way, a related question, is there a way to edit action or copy/paste midi note in millumin without using an actual midi controller ?

Thanks !