1) is already possible, through an unofficial and subject-to-change (but probably not going to in the near future) system; insert this character at the start of the link:
and this one at the end:
and the text between them will turn into a link.
For 2), there's not even unofficial support for that yet but you can boldface numbers with this start code:
and this end code:
and use this code in place of a newline:
to achieve the same formatting effect.