My tasks have many nested subtasks, and are in fact “mini-projects” which require 2-4h to complete. That would be great to have a feature allowing focusing on such tasks (with sibling subtasks) in a new window - like we have for projects.
From a few years ago there have been several requests to expand action group functionalities to behave like subprojects, but so far I don’t think this is in the sw roadmap, not sure why.
I believe to request new functionalities you should send an email to support@omnigroup.com. This forum is not apparently searched for feature requests.