One blocklist we can maintain in a single place and apply to every account

Following on from the thread I started before Christmas about finding the same junk in forty accounts every month. What I want is a list I maintain once - jobs, salary, training, DIY, competitor names, the usual - which I can apply across every account I manage, and which stays applied when a new campaign appears. Shared lists in Google Ads get me part of the way and they're per campaign, so somebody has to remember every time anything is created, and somebody never does. Two things that would make it genuinely useful rather than just a stored list: Categories rather than one flat list, so I can apply employment terms everywhere but keep the competitor list per client. Some way of knowing what a term has blocked since I added it, so when someone asks why we are not appearing for something I can answer without guessing.