create a new woocommerce product and scroll down until you see the settings
set product type to variable product
Inventory -> Limit purchases to 1 item per order(on)
click on attributes and create an attribute named “Quantity”. It must(!) be called exactly “Quantity”, otherwise it won’t work. If you want to sell 10 and 20 of your service enter “10 | 20” in values. If you make a mistake in this step, you will have a quantity error in your panelhelper orders.
click used for variations and un-check the rest
click on variations and click on generate variations
enter the price for each product
Click on the Panelhelper row
Click the activate Panelhelper checkbox
select your service and enter a title that should be placed above the user input field.