[lasereyes136]

2 features here really mean 2 development tasks however a task is defined for your team. The idea is to have one to work on while the other is in the background (maybe being worked on by your subscience) and to take a new one once one is done, even if it isn't worked on immediately.

The main goal of work in progress limits to get work to done rather than starting new work (that doesn't get to done).

Ideally in Scrum your sprint commitment is a work in progress limit but in practice it isn't treated as such for reasons. Kanban can allow expedited issues to address an "emergency" issue but even that has a WIP of 1 so emergencies have to be prioritized.