KeyframeMarker

local keyframe = Instance.new("Keyframe")
keyframe.Parent = workspace

local marker1 = Instance.new("KeyframeMarker")
marker1.Name = "FootStep"
marker1.Value = 100

local marker2 = Instance.new("KeyframeMarker")
marker2.Name = "Wave"
marker2.Value = 100

keyframe:AddMarker(marker1) --marker.Parent = keyframe
keyframe:AddMarker(marker2) --marker.Parent = keyframe

local markers = keyframe:GetMarkers()
for _, marker in pairs(markers) do
	print(marker.Name)
end

local Players = game:GetService("Players")

local player = Players.LocalPlayer
local character = player.Character or player.Character:Wait()
local humanoid = character:WaitForChild("Humanoid")

-- Create new "Animation" instance
local kickAnimation = Instance.new("Animation")
-- Set its "AnimationId" to the corresponding animation asset ID
kickAnimation.AnimationId = "rbxassetid://2515090838"

-- Load animation onto the humanoid
local kickAnimationTrack = humanoid:LoadAnimation(kickAnimation)

-- Play animation track
kickAnimationTrack:Play()

-- If a named event was defined for the animation, connect it to "GetMarkerReachedSignal()"
kickAnimationTrack:GetMarkerReachedSignal("KickEnd"):Connect(function(paramString)
	print(paramString)
end)