How do I pass a cutom value to the PayPal?

Can I use PayPal standard and PayPal invoicing on the same form? I have customers that pay directly and others that need invoicing and I am looking for a short way to add invoicing so I don't have to create another form. I could use your help with this one. 

Thanks in advance

It looks like I will have to do the following per Paypal 

Order detail parameters

https://developer.paypal.com/docs/classic/express-checkout/integration-guide/ECCustomizing/#provide-line-item-details

I am only looking to change capture this field L_PAYMENTREQUEST_n_DESCm 

Need your help!

Unfortunately, you cannot add two payment methods in a single Form. As a workaround, you can make two Forms and then embed one of the Form in the first Form using the iFrame widget.

Guide: https://www.jotform.com/help/182-How-to-Create-a-Basic-Multiple-Payment-Form

If you need to enable the "Custom Field" option in your PayPal payment wizard, you need to add a "Text Box" field. Here's how:

1. First, you need to add a "Text Box" field as shown below. 

2. After that, when you open the payment wizard, you will see the option "Custom Data Field". This will only show up if you have a text box field in your form.

Hope this helps!

Thanks.