If you have a SimDif Pro Site you can add PayPal buttons to your site in the following way:
● Create a Business PayPal account, if you don't already have one.
● Go to SimDif Site Settings > E-Commerce Solutions > Buttons > PayPal, and ‘Enable PayPal’.
● Choose either Donate, Buy Now, or Add to Cart / View Cart button type, and click Apply.
● Choose a page to add a product to, tap "Add a New Block", select 'E-commerce', and choose one of the blocks.
● In the new block, tap on the Button.
● Click on the PayPal link in step 1 of the instructions to go to the correct page of PayPal for the type of button you have chosen.
● Set up your button in PayPal if you have not already done so, copy the button code, and paste it into the code box.
Watch the tutorial video:
How To Add PayPal Buttons