Bentley offers online classes. The ones you want will cost you, but there are a few free ones. You can take either instructor-led or self-paced classes. If you choose to take the self-paced you can take them at your own pace and on your own schedule. I think they have manuals you can purchase...
I'm assuming you are refering to the Tool Settings box. It depends on what version of Microstation you are using, but try going to "Settings > Tool Settings" and turn it off and then turn it back on. This usually brings it back.