Why AS Number from NFA is not a view on PM (IP Flow)?
There is any way to see that on PM?
The NFA views in CAPC actually pull the information directly from NFA so they are a bit different from the rest of the views you could configure and tweak from the DA side. The docs do list all of the currently available views here:
If a view is not listed here (looks like the one you mention is not) and it is one you are interested in getting implemented in CAPC I would recommend creating another thread on this forum but do it as an "Idea". That will effectively be an enhancement request.