Your description isn't comprehensible to me. Can you add an example of what you're running against, what you're getting and how what you're proposing helps?

I believe what the original post is asking for is something like this (really ugly example, but):

if True:
    if (a() and
    b()):
        print('hi')

$ ~/opt/venv/bin/pycodestyle t.py
t.py:3:5: E128 continuation line under-indented for visual indent

but OP would like to see

$ ~/opt/venv/bin/pycodestyle t.py
t.py:3:5: E128 continuation line under-indented for visual indent (indented 4 spaces, expected 8 or 12 spaces)

but I guess that demonstrates another problem, there's multiple things that could be suggested for each code. satisfying one of them may also break another code (for example, 8 spaces is ok for E128 but then triggers E129)

Indeed. I got the idea from flake8-tabs, which I noticed adds this information (but, unless you want to use tabs, it does nothing else of interest).

I guess that demonstrates another problem, there's multiple things that could be suggested for each code

Yes, well I think baby steps towards the right solution is a fair thing to do. Adding "indented 4 spaces but expected 8 or 12 spaces" could be helpful to even someone just new to this tool, let alone a random codebase. As we aggregate the most common pain-points of these hints we can make the hints slightly better to reduce annoyance.