What Buttons have you changed from default in MC?

[Redwash11]

Optifine zoom: don't have yet, need to go mod my game
Sprint: middle mouse button
Hotbar 1: F
Hotbar 3: R
Hotbar 9: G
Jump: Q
Drop: Spacebar

 

[Iametal]

Sprint-R

 

[BlitzCometITU]

Inventory: Q
Drop: E
Optifine Zoom: Tab
Player list: Control

 

[Dragongirl10188]

A lot xD.
It helps having a mouse with many buttons that I can adjust sensitivity with.

 

[DevilishNinja]

f5; Z
Sprint; f :3

 

[plimpy41]

I just changed my list players to Z.

 

[xArchRebelz]

Optifine Zoom: middle click
Sprint: LShift
Crouch: c
No 9: f
No 8: v

 

[TheManeEvent]

Changed Optifine zoom to Z
Changed Sprint to R

 

[Nitro]

Sprint: E
Inventory: R

 

[JacyNinja]

Toggle Perspective: R
Crouch: Caps Lock
Sprint: L Shift
Zoom: Control

I love my setup other than when I try to type sometimes and ITS ALL IN CAPS.
Kind of annoying, but I deal with it.

 

[OldManWilikers]

Sprint: F
Crouch: R
Toggle Perspective: C

 

[TheOnlyChanse]

Woah woah you can change hotbar?