This afternoon I whipped up JyteKeys, a Greasemonkey script that adds hotkeys for common operations on Jyte.
As you can see in the screenshot, there are hotkeys for pretty much every common navigation action, including browsing paginated lists of claims. There's also a hotkey for an advanced search I use pretty frequently which displays all claims you've commented on that have had new comments since you last looked.
Different hotkeys are available depending on what page you're on and whether or not you're signed in, but you can always press L to see the legend, which displays all currently available hotkeys.
Share and enjoy!