Disable automatically adding new speakers

So I don’t think this is currently a feature so perhaps it’s a wish list request. I had an issue with DNS that resulted in all my devices duplicating themselves on my network many many many times over.. it’s all fixed now but the end result in indigo was Airfoil Pro having a huge number of speakers in its list that had to be deleted one at a time... so either an option to manually scan for new speakers or a batch delete function (or both) would be hugely welcome!

+1 for option to disable automatic addition of speakers.