get feature branches

Hello I'm new to the Forum,

currently I'm extending an teamcity wallboard. But one think is confusing. When I'm
using SBuildType and it only exists this buildType. No matter what i call
getLastChangesStartedBuild or getLastChangesFinished, I won't get any
feature branches.
Could someone please explain this behaviour to me and what method I should look
for ?

My I'm is it to get the latest build running or finished.

Well history is working but kinda too much :)

Thanks in advance!