Hotbar Slot Presets
by LumyNova
Hotbar Slot Presets lets a player bind two different keys to the same hotbar slot and toggle between them from the pause menu.
What it does
A player chooses one of the nine hotbar slots and assigns it two keys. Pressing either key selects that slot, and the slot itself stays the same, so only the key that activates it changes. The switch between the two keys is made through a button in the pause menu, so it can be done without leaving the game for the options screens.
The mod runs on the client alone, so only the player needs it and a server can run without it. It is a Fabric mod with the latest file 1.0.1 for 1.21.11, published on 2026-03-23. Cloth Config API, Fabric API, Mod Menu and YetAnotherConfigLib (YACL) are required and must be installed alongside it. The code is not open source; the author keeps the source public and asks for credit when it is reused.
Key features
Two keys per slot
Each hotbar slot can hold a second key, so one slot answers to two different bindings.
Pause menu toggle
A button in the pause menu switches the active key without opening the controls screen.
Slot stays fixed
Switching keys changes only the binding; the selected slot and its item remain the same.
Slots one to nine
Any of the nine hotbar slots can be set up with its own pair of keys.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Use cases
PvP and combat
A player can keep a weapon or potion in one slot and reach it with a second key that sits closer to the mouse hand.
Keyboard layouts
Players who switch between layouts can map the same slot to two keys without rebinding it each time.
Who it’s for: Players who want a second key for a hotbar slot, mainly for PvP. Server owners do not need to install it, because the mod changes only the player's own controls.
How it compares
No ESC in GUI is a Fabric client mod for 1.21.4 – 1.21.11 under the MIT License and is not open source, and it changes how the Escape key behaves in menus. Scroll Control is a Fabric client mod for 1.21.11 under the MIT License, also not open source, that handles the scroll wheel instead of keys. Hotbar Slot Presets only assigns a second key to each slot.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Hotbar Slot Presets | Fabric | 1.21.8 – 1.21.11 | Client-side only | 2026-03-23 |
| No ESC in GUI | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-01-18 |
| Scroll Control | Fabric | 1.21.11 | Client-side only | 2026-02-11 |
Questions
Does Hotbar Slot Presets need Fabric API?
Does the server need the mod?
Which game versions does the mod support?
Can the source code be used in other projects?
In the catalog
Hotbar Slot Presets is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from LumyNova
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What the author says
Quick note: I'd appreciate if you wanted to port this mod to other loaders and older versions! You have my permission as long as you keep the source open and give credits:) Please use at your own risk — ask if it's allowed on the servers you wanna play with it on before using!
Official listing
- Modrinth page
- modrinth.com/mod/hotbar-slot-presets
- Owner
- LumyNova
- Published
- 2026-02-27
- Updated on Modrinth
- 2026-03-23
- Facts verified
- 2026-10-15