Insert a SignedOrder instead of Relayer in Instant

Hi guys,

How do I use a SignedOrder (created in 0x Portal) instead of a Relayer when configuring Instant?

I suposed I had to change:
orderSource: 'https://sra.bamboorelay.com/0x/v2/',

and insert the code of the SignedOrder, but how do I achieve this?

Thanks!

You can refer to the documentation here which details how to do that.