How can I add "Compress to 7zip" in RMB menu in Dolphin?

I see there is RAR, TAR.GZ and ZIP and Compress to… where I can also choose other formats, 7-zip included.

What is the way to add 7-zip directly to the right mouse click menu?

When I go to ‘Download New Services’ is Settings and search I can’t find anything that might solve it.