question about TREX

Hi!

We are very happy to implement this How-To:

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f0d3be0e-0401-0010-b780-ff7e4e103ea0

However, we have some questions here:

1) We can ONLY afford to install one TREX on one NT. So how to use this ONLY TREX to search the documents on another NT where no TREX installed?

2) We have an EP7 with KM which can access several NT systems' file systems. Above How-to does mention EP7.0 role.

Can we use this EP7's KM and that standalone TREX to achieve the goal: search documents on multiple NT systems?

Thanks!