When I import from Junit XML using the API (/rest/raven/1.0/import/junit?...) the generated Test Execution has a name like this...
Execution results - test_results.xml - 
Can I get more control over the name?
I definitely don't want the long string of digits, unless they have some purpose that I don't understand (-:
Concerning the naming, it is done automatically based on the JUnit report as described in https://confluence.xpand-addons.com/display/XRAY/Taking+advantage+of+JUnit+XML+reports .
Test Cases are imported to Xray’s Generic Test issues, and the “classname” and “name” attributes are concatenated and mapped to the “Generic Test Definition” field of the Generic Test. If a Test already exists with the same “Generic Test Definition”, then it is not created again.