I have it working now and I posted in Action Chains scripts.
Another question:
Currently, the chain
here halts the entire thing if I press 'no.' Is it possible to make it only apply to the next action in the chain?
Background:
Currently, I have two chains: "Send to Device" and "Send to Device + Add to TBR." They're identical except for a a single 'add to reading list' action. So instead of two chains, it makes sense to prompt for that one action. Putting it at the end works, but then that means I can't put my column re-sort module there.