I don't know how this applies to Windows 8/RT, but on Android it seems there's no way to plot multiple jump routes using the touchscreen.

Doing /navroute add "Sedina B-8" works, but it's clunky, especially so on devices with dinky or nonexistent keyboards.

A nice, intuitive (for Android users at least) way to do it would be to have a long-press add to the current route instead of replacing it.

+1 to long press. I found this very annoying.

+1

Noted, we'll look into it.

The next update has a form of this new feature. Long-press (greater than .5 seconds) and release will add a waypoint (there is currently no notification to you that the long-press was accepted, so if you don't long-press long enough, it will delete all your waypoints which is undesirable). This feature will be enhanced later to automatically add the next waypoint after the long-press without having to release the press to notify you that the long-press happened (and maybe a sound as well).