Hi Felix,
Back in 2010/2011, instead of using
dynamic_reconfigure, we opted for rtabmapviz instead to change rtabmap's parameters. You can change all parameters on runtime.
For odometry nodes, there is no way to change the parameters on runtime. rtabmapviz could be used to do that (you will see right know the Odometry panels are disabled). I opened an
issue, I'll take a look soon.
cheers,
Mathieu