how do we change the connection of an AO workbook from BIP relationship connection to a BIP HTTP connection

We currently have many workbooks in AO 1.4 saved on users computers.  We want to upgrade to AO 2.2.
Before we can do this I need to know how to convert the current workbook's connection to point to the new HTTP connection we created on the BI Platform.   The current workbooks are using a Relational Connection to HANA on the BI Platform.

I have seen posts that talk about switching from ODBC to HTTP, but that is now what we are doing.

Can someone guide me to some instructions?

Thanks

Patty