Hi Auge!

[2] By the way: In a beta version of mlf2 it gave two code-tags, one for code blocks, another for inline code. Is that behaviour existent in the final releases too (Alex?)?

Let’s give it a try:
inlinecode: monospaced text within a single line (in Micha’s terminology: ‘im Kontext’)
--> foo <--

code: monospaced text with leading/trailing linefeeds (in Micha’s terminology: ‘nicht spezifiziert’)

foo   bar
===   ===

Therefore answer to [2]: Yes.