Question: I really need to create a keyboard shortcut to move from one sheet to the next in Google Sheets in Chrome OS. In Mac this exists, but does not on Chrome OS. There is an extension called Shortcut Manager (Chrome web store) that allows you to create a javascript app to activate a shortcut, but I have no idea how to do this. 

On a Mac the shortcuts are theses: 

`Ctrl` + `Shift` + `PageDown` → Move to next sheet (`Cmd` + `Shift` + `Fn` + `Down arrow` on a Mac)

`Ctrl` + `Shift` + `PageUp` → Move to previous sheet (`Cmd` + `Shift` + `Fn` + `Up arrow` on a Mac)

It would be nice to have something simpler on Chrome OS. Any help would be appreciated.

Answer: 
I found out that `Search`+`Shift`+`Ctrl`+`Up/Down` key combination on a Chromebook will go from one sheet to another. 

You just have to make sure that the search button on the Chromebook is not set to Caps Lock (but rather to Search) and it will work perfectly. I found this out completely by accident. Hope it helps others.
Without installing a Chrome extension, you can use these three key combinations to go to the next sheet on Chrome OS.

1. `Alt`+`Shift`+`K` (Display list of sheets)
2. **up/down** key (Highlight sheet)
3. `Enter` (Go to sheet)

[Source](https://support.google.com/docs/answer/181110?hl=en "Chrome OS Spreadsheet navigation").