I am assuming that Adonis works like a lot of admin command scripts nowadays in which they require a module that is private. Due to this, the probability of you being able to script something like you described is little to none unless they have provided specific documentation on how to do so.
An easier solution would be to code these functions yourself, instead of using admin commands as a basis for your buttons, if you find the right resources it should not be that difficult, and if you would like to know how most admin systems handle fly, here is some source code for you that should be adjusted to your needs of a ScreenGui event:
-- Taken directly from Khol's Admin V2
local PathToGui = nil -- Change this to your button
local mouse = game.Players.LocalPlayer:GetMouse()
local plr = game.Players.LocalPlayer
local torso = plr.Character.UpperTorso
local flying = true
local deb = true
local ctrl = {f = 0, b = 0, l = 0, r = 0}
local lastctrl = {f = 0, b = 0, l = 0, r = 0}
local maxspeed = 50
local speed = 0
function Fly()
local bg = Instance.new("BodyGyro", torso)
bg.P = 9e4
bg.maxTorque = Vector3.new(9e9, 9e9, 9e9)
bg.cframe = torso.CFrame
local bv = Instance.new("BodyVelocity", torso)
bv.velocity = Vector3.new(0,0.1,0)
bv.maxForce = Vector3.new(9e9, 9e9, 9e9)
repeat wait()
plr.Character.Humanoid.PlatformStand = true
if ctrl.l + ctrl.r ~= 0 or ctrl.f + ctrl.b ~= 0 then
speed = speed+.5+(speed/maxspeed)
if speed > maxspeed then
speed = maxspeed
end
elseif not (ctrl.l + ctrl.r ~= 0 or ctrl.f + ctrl.b ~= 0) and speed ~= 0 then
speed = speed-1
if speed < 0 then
speed = 0
end
end
if (ctrl.l + ctrl.r) ~= 0 or (ctrl.f + ctrl.b) ~= 0 then
bv.velocity = ((game.Workspace.CurrentCamera.CoordinateFrame.lookVector * (ctrl.f+ctrl.b)) + ((game.Workspace.CurrentCamera.CoordinateFrame * CFrame.new(ctrl.l+ctrl.r,(ctrl.f+ctrl.b)*.2,0).p) - game.Workspace.CurrentCamera.CoordinateFrame.p))*speed
lastctrl = {f = ctrl.f, b = ctrl.b, l = ctrl.l, r = ctrl.r}
elseif (ctrl.l + ctrl.r) == 0 and (ctrl.f + ctrl.b) == 0 and speed ~= 0 then
bv.velocity = ((game.Workspace.CurrentCamera.CoordinateFrame.lookVector * (lastctrl.f+lastctrl.b)) + ((game.Workspace.CurrentCamera.CoordinateFrame * CFrame.new(lastctrl.l+lastctrl.r,(lastctrl.f+lastctrl.b)*.2,0).p) - game.Workspace.CurrentCamera.CoordinateFrame.p))*speed
else
bv.velocity = Vector3.new(0,0.1,0)
end
bg.cframe = game.Workspace.CurrentCamera.CoordinateFrame * CFrame.Angles(-math.rad((ctrl.f+ctrl.b)*50*speed/maxspeed),0,0)
until not flying
ctrl = {f = 0, b = 0, l = 0, r = 0}
lastctrl = {f = 0, b = 0, l = 0, r = 0}
speed = 0
bg:Destroy()
bv:Destroy()
plr.Character.Humanoid.PlatformStand = false
end
mouse.KeyDown:connect(function(key)
if key:lower() == "e" then
if flying then flying = false
else
flying = true
Fly()
end
elseif key:lower() == "w" then
ctrl.f = 1
elseif key:lower() == "s" then
ctrl.b = -1
elseif key:lower() == "a" then
ctrl.l = -1
elseif key:lower() == "d" then
ctrl.r = 1
end
end)
mouse.KeyUp:connect(function(key)
if key:lower() == "w" then
ctrl.f = 0
elseif key:lower() == "s" then
ctrl.b = 0
elseif key:lower() == "a" then
ctrl.l = 0
elseif key:lower() == "d" then
ctrl.r = 0
end
end)
PathToGui.MouseButton1Down:Connect(function()
Fly()
end)