Hi EddieDean,

This isn't the smartest way but the shortest step to achieve what you want to do. So this is how your Sequence diagram looks now. We added some colors to help you go with the step below little easier.















1. Turn off the Suggest Feature







2. Move 1.4's Execution Specification bar (in red) onto the other Lifeline (for temporarily)















3. Grab the origin of 1.4 Message (in red) and drop it on somewhere on the diagram to make it be a Found message (again for temporarily)














4. Grab the "origin" of 2 Message (in red) and attach it to 1.3's Execution Specification bar (in blue) by drag and drop














5. Drag 1.3.1's Execution Specification (in red) and drop it back onto the original Lifeline


















So now "LoginNode()" is under the message "DoLoginChecks()".














Hope this helps. We apologize for too many steps. We'll improve to make it easier to edit existing Sequence diagrams in the future release.

Cheers,
Satomi