Action/Task Duration

I updated these plug-ins to include increments of 5 minutes. (88.3 KB)

I am not sure how to set the macro to just remove the duration but kind of interesting that you can just set it to 0 and it sticks.

(84.8 KB)

Thank you @kaitlin

For those using Keyboard Maestro here are some macros that make these shortcuts.
OmniFocus (18.8 KB)