Displaying metadata in subtitle

Using weaver pro and very happy with this Theme. Much more than I expected, really great. My problem may be a little laughter for a programmer, but for me it is actual a stone. I have metadata for Posts and want them to show up in subtitle. (Working on a multisite)

I tried shortcodes (they wont take code like php), searched for something like [weaver-meta function] and didn’t find. Activated php and couldn’t produce results.

So what will be the best way to get it to work?

the table is named: ger_2_postmeta (cause of multisite)
the frist meta_key is: autor_alias
the second meta_key is: first_pub
everything relatet unique to: post_id

I also found the settings Main Options > Post Specific > Custom Info Lines … everything worked fine.

In this place (Top Post Info Line:) I want to invoke the meta_data, instead of %Title% for displaying all over all listings and searching for a way to realise this, without any bigger css workarounds. Is there a chance? Thanks in advance for some hints to solve my problem.