@gruen We'll get to it when we can. @chrishamm has been away for a few weeks, and is responsible for the config tool, but is also working on the Duet Software Framework. Bugs are tackled in the order of severity, and this particular one has a workaround.
Ultimately, the config tool is a place to start the customisation of your machine. It cannot do everything, particularly for complex machines that use bespoke parts. Understanding and learning how to edit the config.g and the gcodes is an important part of improving your machine.
Ian