Programmers who don't use autocomplete,how do you write long imports?

You'd create macros or templates. In C# & VB.NET you can alias your imports for simpler/smaller code below.

Imports Word = Microsoft.Word ' VB using Word = Microsoft.Word // C#

Imports you only do once so that wouldn't be a huge pain... Though, SOLID/DRY would be a pain with many more imports.

You could also not use taps in toilets at home, and walk to the local river or something... but why would you ?

copy paste from the other files that I'm importing?, after checking out docs and what it does (and how)

I assume yes they would have to verify it somehow...