I would like to be able use CTRL-P / CTRL-N / CTRL-X ... for word completion.

[schwidom]

Is that possible?

Besides the fact that I am accustomed to these keys is also not the same feature which in some cases is provided by the LSP. At least Ctrl-P in the insert mode should provide word completion on all found words in a document (maybe also from open documents) and subsequently Ctrl-X (optionally followed by Ctrl-P / N) for extending a longer string by its occurrences.

That would be great.

Thanks in advance.