Kagi currently already allows navigating up and down search results using the j and k keys on a keyboard. You can then select a highlighted search result by pressing the enter/return key. In addition to enter/return though I would like the l (lowercase L) key to select the currently highlighted search result. This reduces hand movement required when using search and IMO would be appealing to people such as software developers who are used to vim style keybindings and often like to be keyboard focussed.
This extends the existing behaviour by adding another keybinding to mimic the behaviour of the enter/return key.
DuckDuckGo already offers this feature.