In the Module Manager/Modules/ Install/Update the modules are grouped by
- categories (e.g. Biblical Texts, Commentaries ...) then by
- languages (e.g. Afrikaans, Burmeses ...)
both preceeded by a triangle to click on to open/close groups.
As hotkeys work the Up/Down arrows to move up/down the list of modules of different groupings (as far as those have been opened)
-> Add the Right/Left arrow keys to open/close those groupings