Returning multiple resource entries from a single REST get

Hello,

I am attempting to use the RQM REST API to get all of the reservations within a project.

I started by doing a GET for the following URL:
https://SERVER:PORT/qm/service/com.ibm.rqm.integration.service.IIntegrationService/resources/PROJECT/reservation

That returned an XML file containing a list of reservation IDs, which I can then append to the end of the above URL to get an XML file that contains the reservation's id, reserved and reserve fields.

However, if I just append ?fields=anything to the end of the URL, like this:
https://SERVER:PORT/qm/service/com.ibm.rqm.integration.service.IIntegrationService/resources/PROJECT/reservation?fields=literallyanytext

Then I get an XML file with an <entry> block for each reservation and each <entry> block contains all of the above information.

1) Is the extra information that RQM returned when I added the ?fields= parameter expected? I hope so, as it would greatly reduce the # of REST GET requests I'd have to make.
2) Is there any way that I can select the fields that I want from the reservations? (e.g. I'd want the above listed fields + the specific machine information for each reservation)

Thank you for your time