Loop out multiple channels and amounts.

[motud2]

I quite often want to loop out an amount spread over certain channels. So 500k sats from each of 4 specific channels, all in one operation, and therefore one on chain fee.

This would mean overriding the amount selection in the outgoing_chan_set which is currently on a lowest fee basis.

I envision a “spread” parameter that would spread “amt” over the outgoing_chan_set.

Either that or individual amounts specified within the outgoing_chan_set, which would be a more complex and probably not backwards compatible change.

“spread” would be lovely 😊