Is there any kind of alternative script editor that allows a little more flexibility in editing long and complicated scripts? For instance, I have big chunks of code that I would like to be able to simply cut out and paste into another script, or at least be able to rearrange within the current script. Coming from a background of free text code writing, having the steps available on the side is nice, but the contraints are extremely irritating.

There's nothing available at this point, but another option to making long, complicated scripts, is to break them up into small reusable chunks that can be called as subscripts and using script parameters.

I think many people would like to be able to have more manipulation of script steps, but I think FMI is balancing this with wanting to make scripting much easier for new users.