I have nested labels in Gmail, but often run into a situation where I no longer want certain label showing up in the labels list on the left side.
For example, let's assume I have "Year 2014" as a top-level label and have "Project 1" and "Project 2" as sub-labels under "Year 2014". Once "Project 1" is completed, I want that label to be hidden in the labels list, to reclaim real estate in the left-side panel.
Is this possible?