It does make checking a tx slightly more cumbersome compared to when there was just one list in-sync across the machines
I'll add filtering at some point.
The only other thing that came up is that it doesn't seem possible to choose P2SH-P2WPKH as a change address - is that waiting for Core's 0.16 improved segwit?
On the online machine? Can you select SW for recipient addresses? Is the checkbox greyed out? From where did you spawn the selection dialog?