Thanks for the FR.
-
Settings are stored locally already on each device in the browser's local storage (see
Query Log: Remember last selected "Show X entries" by DL6ER · Pull Request #764 · pi-hole/web · GitHub)
If you wish to store the settings across devices please rename the FR to something like "Save Settings from Admin Panel across devices" so that others can easier identify what you really want. -
Please remove the second request and vote here
Add refresh and (or) live option to query log