Add an option to have the filter lists of secondary profiles be synced with the filter lists of the 'Default' profile

Often while tinkering and adjusting my content blocker filter lists, I encounter the slightly annoying obstacle of the changes only being applied to the current profile, meaning I'd have to repeat the steps for each of my profiles.

Adding the option for the non-default profiles to simply follow the filter list rules of the Default profile would be a nice quality of life improvement for those users who actively use multiple profiles.

A crude suggestion for how the user would use this feature (wording still pending):

Ticking that box would grey out everything else in that window to signal that the user has chosen to sync their rules with their Default profile.

Ideally the rules would be synced every time the user launches a secondary profile. Of course making it even more seamless and having the changes be applied instantly in every case would be even better but I do know about the techical limitations and costs of that approach.