I use Vegas 5. I have a project with many video events i want to overlap.
I use the Excalibur overlap tool (with move B option), but this works only with the first event but not for the following in the same track (even if they are selected).
That particular tool is designed to work with the first selected event. I've been thinking about changing it to work with multiple events.
For the "move B" option with multiple events, try the Gap/Overlap tool instead. It will "move B" but will do the entire track or all selected events. I think that's probably the tool you're looking for.
What version of Excalibur are you using? What version of Vegas are you using? Vegas 6 changed the way one of the commands worked. The current version works around that problem.