SozoKa

The “don't move mister horse” feature you're looking for.

Improves lead behaviour by enabling leashed entities to jump-block more easily and teleporting them to the player if the leash is about to break.

Get your chests/hoppers/... back by putting minecart and boat variants into a crafting grid to get all uncombined items! (ex: 1 minecart AND 1 chest)

Sit anywhere you want! Look down, double tap sneak and right click and you sit. As easy as that. Or you can just sit on stair/slab or via "/trigger sit". Work on vanilla servers, or any other setup.

Convert command blocks to clickable signs by waxing a sign that has command blocks (max 4) behind it.