Requests to access files managed by Dropbox on application startups

[Jendker]

I am using mackup to sync application preferences between devices over Dropbox. Now, if any application with synced preferences is started I will get a question if given application is allowed to access Dropbox files (because it tries to access its preferences). Examples below.

How do you deal with it? Is there a way to disable such notifications and allow all applications to access Dropbox files (or e.g. Google Drive files if I switch to Google Drive) and avoid such pesky notifications with mackup?