1. Exclude weekends altogether, so that my week only shows Monday through Friday without Saturday and Sunday (since I am planning working periods, and I don't want to plan weekends). Right now, the "hide weekends" option toggles a gray vertical line on and off.
2. Related to this would be the ability to create phases and milestones that automatically take only business days into account. So a week-long phase would be 5 days, not 7 days, for example. A milestone would automatically be populated on the first business day available.
3. Related to #2: Ability to create templates of phases and milestones that only take into account business days.
We have launched the ability to hide weekends from the Releases roadmap. This helps to make it even easier to plan when key release phases and features will get done and visualize how dependencies may impact your schedule.
You can read more about this new update here: http://blog.aha.io/visualize-release-schedules/
Some have also mentioned interest in the ability to create phases and milestones that automatically take only business days into account. Along with the ability to create templates with only business days. We have created a separate idea, which you can vote on to subscribe to those updates: https://big.ideas.aha.io/ideas/APP-I-4181