There is a few issues with the Control Editor, the first being that the back sight (back bearing / azimuth) information does not come through (when reducing a Trimble DC file). I can only assume that this is also related to the instrument height issue with regards to the format and codes within the Trimble DC file.
The second issue, which I have raised before, is that the Units still default to "U.S. Foot" and do not reflect the set preferences of metric.
Needless to say, both of these issues need urgent addressing.