This may be a dumb question, but I have a feeling that other people are probably in the same boat.
I clicked the green cover button under open orders; result: It appears I now have more btsx..Questions:
What did I do? (with regards to market mechanics)
Are there any negative effects I should expect in the future?
"Green" button means "press here", right?
What do I need to know about margin orders?
I'm working to further my understanding of margin calls and could use a good overview / ELI5