Import Other Fields

Hi all. My team is fairly new to using AIO. We already have a decent amount of automated test cases using NUnit as our test runner. My current task is to figure out how to get those test cases imported into AIO. I found the documentation regarding import test results files and after a simple test with a small amount of cases, I was able to get it to work. However, after the import was done I noticed that not all fields from my test results file were imported into AIO. For example, take this test from our repository:

    [Test]
    [Category(TestCategory.ManageAppApi)]
    [Description("Verifies that a property with open violations that are updated to closed returns the correct counts for those items.")]
    public void Properties_UpdateOpenViolationsToClosed_Test()

As you can see, it has both the NUnit Description and Category attributes. I did a test run including this test. I then imported it into AIO. The test case was created in AIO with the name "Properties_UpdateOpenViolationsToClosed_Test" which is perfect. However, I would also like Category and Description to be imported as well. As there is a Description field on AIO test cases, it would make the most sense for my Description from code to populate the AIO Description field. For category, I would love to be able to populate the tag field with whatever categories I have on a test case in my code. Is there any way to do with with the import endpoint?