I've been trying to figure out how to have a custom time set for the "add notification" options, and there doesn't seem to be any way. For example, I need to set it to 1 hour and 30 minutes, but there's no option for that. We need the ability to enter exactly the number of minutes and hours we want, instead of only having presets.  EDIT: Now after using it for a while, the app has been plagued with reliability issues. It often is late with the notification by a few minutes, or the service completely stops and I'd have to restart the service. Due to this issue, I cannot rely on this app for anything that is time-sensitive because I'd end up being late for all my appointments and jobs. I've contacted the developer multiple times about this but so far they haven't been able to fix the issue.