Switching between objects without exiting edit/pose modes

Blender developers made a huge step forward by adding an ability to edit multiple objects at the same time, but what if they expand this feature further?

By the time being you use 2 steps:

1. You select objects
2. You enter edit mode

What if you could:

1. Enter edit mode
2. Select/Deselect objects in the outliner to Include/Exclude or simple switch to another objects without exiting edit mode?

Thank you.