https://www.curseforge.com/wow/addons/transmog-craftsman Creates a dropdown menu where your remove from shopping list button is at

Possible solution

if event == "TRADE_SKILL_SHOW" then
--Some variables for later use
local addWidth, removeWidth, addCraft, removeCraft, addPoint, removePoint
--Check if TransmogCraftsman is loaded
local loaded, reason = IsAddOnLoaded("TransmogCraftsman")
if loaded then
TradeSkillFrame.SearchBox:SetPoint("TOPLEFT", TradeSkillFrame, "TOPLEFT", 195, -55)
addWidth = 45
removeWidth = addWidth
addCraft = "Add"
removeCraft = "Rem"
addPoint = {"TOPRIGHT", TradeSkillFrame.DetailsFrame.CreateButton, "TOPRIGHT", -220, 418}
removePoint = {"TOPRIGHT", TradeSkillFrame.DetailsFrame.CreateButton, "TOPRIGHT", -170, 418}
else
addWidth = 90
removeWidth = 130
addCraft = "Add to list"
removeCraft = "Remove from list"
addPoint = {"TOPRIGHT", TradeSkillFrame.DetailsFrame.CreateButton, "TOPRIGHT", -150, 418}
removePoint = {"TOPRIGHT", TradeSkillFrame.DetailsFrame.CreateButton, "TOPRIGHT", -20, 418}
end

-- Create the "Add to list" button
addCraftListButton = CreateFrame("Button", nil, TradeSkillFrame, "UIPanelButtonTemplate")
addCraftListButton:SetText(addCraft)
addCraftListButton:SetWidth(addWidth)
addCraftListButton:SetPoint(unpack(addPoint))

-- Create the "Remove from list" button
removeCraftListButton = CreateFrame("Button", nil, TradeSkillFrame, "UIPanelButtonTemplate")
removeCraftListButton:SetText(removeCraft)
removeCraftListButton:SetWidth(removeWidth)
removeCraftListButton:SetPoint(unpack(removePoint))

I've added the option for smaller button sizes, this should fix the issue. It will be included in v9.0.5-002-beta.