Let’s say you have some text and you want to turn it into a wiki-link, where the text is different from the link text. This situation occurs quite frequently.
- You add square brackets around the text.
- You start typing the link in front of the text.
- If you select the link from the suggestions list, it replaces the text. So you have to type the link manually.
This adds friction, especially when the link text is long.
When you select the link from the suggestions list in the situation described above, holding a key pressed adds it without replacing the text.