Can I set up Transmit to automatically open files in an external editor of my choice?
Yes! Open the Files tab of Transmit’s preferences and add your favorite to the Custom Editors list. You can even specify more than one based on the file extension.
You can also set the Double Click Action setting to Edit in External Editor if you don’t want to save files to your local drive.
What if I want to make a quick edit without opening my default editor?
Simply right-click the file and select the option for Edit in Transmit.
Changes from my external editor don’t seem to upload right away. How can I make Transmit upload the changes immediately?
You’ve just discovered a feature OS X called App Nap. It’s designed to save power by ”slowing down“ background applications. (Like Transmit when you’re working in an external editor.) As it turns out, the files do upload automatically, but they might be delayed by a few seconds.
If App Nap is causing issues for you, it can be disabled via terminal command.