All targeting commands should now work correctly. I still have a little tweaking to do so the targeting is faster, but it worked in every scenario I tried.
If you have multiple instances of TL.exe running, Speeder will ask for the process ID you want it to attach to. It will also display your character's name for that instance so it is easy to differentiate the IDs.
These changes require updating Speeder to version 12. The latest version can be found by clicking the "MEGA Folder" button in Launcher.