Qbittorrent: Tracker manager: bulk add/remove/edit outdated tracker/s of all torrents

Hello, i am using Windows 10 and qbt 4.0.4 and i think i was talking about this feature already, but can not find it.

ISSUE:
I have ~600 torrents now and some have outdated trackers/not working or ones with old PID (user identification numbers on private trackers that are part of announce url) in its URL.

I tried to use PSPad Windows software to bulk replace old PIDs by new ones in all files inside C:\Users\MyUserName\AppData\Local\qBittorrent\BT_backup

But qbt ended up showing around 300 torrents less than before i exited qbittorrent before doing the replace. So i quit qbt again and restored backup of that folder and after start torrents was back, but i am still there with redundant not working trackers & outdated announce PIDs. So i am asking here if you know any hack to fix it, to replace old announce URL PIDs..

Also this is an idea to create NEW FEATURE - tracker manager:

1. Allow deleting/adding particular tracker or multiple trackers from/to all torrents (or better only from/to torrents belonging to certain category, tag or torrent type (public/private)
2. Allow editing tracker URL in all torrents (so i can renew PID or even replace one tracker by other)
3. Show list of all trackers and show statistics for them. Example:
4. downtime last 7days, last 30 days, last 90 days
5. number of unique peers helped establish connection resulting in download/upload

And allow sorting trackers so i can select worst ones and bulk remove them from all torrents that have example minimum 2 other trackers so i do not end up tracker less on some torrents.

Thank You

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