Feature Request: Configurable Notification time

[stuckinger]

Feature Request:
Make notification flexible the same way as retention itself.
So when a file gets deleted after years the users may have a little more time than just one day to react and check if retention for their files is OK.
Could look somehow like this (just a quick 'n dirty mod from current manual):

I know it might feel wrong because retention should be activated for files that really should be deleted, but in that case I could also just skip the notification. IMHO in case of notification one should be able to select a reasonable time range corresponding the given use case, leaving the decision up to the admin.

[Kryptopirat]

A very useful feature.

[Joshua2504]

+1 please add this