ADS1299-6: Is it possible to use SRB2 and SRB1 as an equivalent to the absent TESTP and TESTN?

Part Number:ADS1299-6

Hi,

With ADS1299-6, is it possible to use SRB2 and SRB1 as an equivalent to the absent TESTP and TESTN? From figure 18 in the specification (sbas499c.pdf) it looks like SRB2 can't be routed to PGAP, without also connecting it to INxP.

Best Regards