Thanks for all the support, I am working hard on the background to improve things. As I also do respect all your opinions I decided the following for the next versions:

• My intention is not to discourage you to change / play with the settings, so the dev mining will start after 5 minutes instead of 2 minutes. This will give you time to grab a coffee / check your settings / correct it if you see a lot of HW errors / do multiple settings at once after a restart before it starts mining on the dev pool.
• The dev fee pools are shown again in the mining status overview (light grey colored) and also in the kernel log, so everybody can check / see what's going on. If you still have questions about it, please ask friendly in this topic.