portage-ng --merge
>>> Emerging : portage://gnome-extra/gnome-user-docs-50.4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://gnome-extra/gnome-user-docs-50.4
│ └─ file ─┤ 15.65 Mb gnome-user-docs-50.4.tar.xz
└─step 2─┤ install portage://gnome-extra/gnome-user-docs-50.4
│ └─ conf ─┤ USE = "-test"
└─step 3─┤ run portage://gnome-extra/gnome-user-docs-50.4
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
15.65 Mb to be downloaded.