Hey, thanks again HCP and NeuroticFish. I've completed the (verified .exe) install on the airgapped Win10 machine via restore seed and the setup of the watching wallet on the online machine. I see the transaction history on the online machine, so all good there.
But I'm not seeing the option to export an unsigned transaction from my watching wallet:
you can create a transaction (click "Export -> to File" when prompted) and save the ".psbt" (partially signed bitcoin transaction) file
I'm on the 'Send' tab and have entered the destination address and the amount, but the only options I'm seeing are 'Clear', 'Save', and 'Pay...'. Clicking 'Save' just creates an item in the 'Outgoing payments' table below that with status=Unpaid, but I've gone through all the contextual menu options and cannot find an 'Export' function.
The UI also doesn't match the cold storage documentation, so maybe some things have changed for 4.0.9? There's definitely no 'Preview' control on the 'Send' tab as indicated here:
https://electrum.readthedocs.io/en/latest/coldstorage.htmlI've double-checked the signature verification of the install file, which I got directly from electrum.org. Any ideas?