Is there a way to realize tabs in Multimarkdown syntax?
My Goal is something like:
I could realize that by a table, but this would be an overhead. I'd love it to stay a list.
You can type "tab" characters wherever you like. But there is no concept of alignment outside of a table since there is no way to know whether the resulting output will be displayed in a monospace or variable-width font. And since Markdown/MultiMarkdown eat unnecessary whitespace, the extra spaces would be stripped from the resulting output.
A list is designed to display sequential data. A table is designed to show tabular data. It seems that you want to show tabular data, but are trying to force it into a format that wasn't designed for that purpose.
So the concise answer to your question is "No".