I think his suggestion is something similar to one I made earlier. I asked if it was possible for triggers and blocks to be given different colours as we wish. This would make particular triggers easier to spot and maintain. The triggers, when looked at in the editor, all look the same with their grey shading. It would be handy if some colour could be added so that reference points could be marked for easy identification.
Whitey is suggesting that the triggers be collapsible so that he can find a specific trigger more quickly.
I think the use of colours would be easier to implement.