Offhand Hotbar

Offhand Hotbar turns the third row of your inventory into a hotbar for your offhand, making your inventory management more flexible. For example, you can hold tools and weapons in mainhand and building blocks in offhand, or you could have weapons in mainhand and various consumables in offhand.

By default, the scroll wheel controls your mainhand selection and number keys control your offhand selection, but this is configurable.

The mod contains several visual layouts to choose from:

Side-By-Side	Stacked	Vertical

(see Gallery if images are too small on mobile)

Warning: It is possible the rapid item movement may get flagged by anticheat, use on public servers at your own risk.

The mod is still in beta, so please send any feedback or suggestions you think would improve usability to the issues page!

Mechanics

Under the hood, this works by shuffling around items whenever you change selection.

Because gui slots are controlled by the server, it is not easy to replace the inventory slot with the offhand slot in containers, so opening any sort of container or other inventory screen will swap items so that the third row of your inventory is consistent. The original offhand slot becomes the "default" offhand item that is equipped when a container is opened.

The swap hands keybind (default F) still works to swap your currently selected main and offhand items.

Known bugs

Your offhand item and selected item may get swapped around if you disconnect ungracefully (e.g. the server kicks you)

Configuration

Display Mode

The visual layout to use. The options are:

• Side by Side (default)
• Stacked
• Stacked Swapped
• Vertical
• Vertical Swapped

If you have a suggestion for another layout, feel free to open a github issue.

Scroll Controls

If the scroll wheel should control the mainhand or offhand (default: mainhand)

Keyboard Controls

If the number keys should control the mainhand or offhand (default: offhand)

Keybinds

In 1.21.1 you must go to the Controls > Keybinds section to set these, but in 1.21.5+ it is also available in the config screen (thanks Motschen!).

Control Opposite Hotbar

Holding this key will make scrolling and keyboard control the opposite hotbar. For example, if Scroll Controls is set to mainhand, then holding this key and scrolling will instead scroll the offhand. (default: Left Alt)

Scroll Inventory

Holding this key will cycle the three rows of your inventory when you scroll, which changes what is available in your offhand hotbar. (default: R)

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Credits

This idea was inspired by an episode of The Spawn Chunks podcast