@rahulborkar idea to hide the years by right clicking the years and using HIDE. This is not a good long term solution though. In the New UX you can hide the time summaries which is great for visualization but doesn't really help you here.
Another way is to create a Boolean line item in your HALF system module (SYS03) called "HY Only?" and set the formula to TRUE. Then use this line item as a filter in your saved view. Now only half years will appear. This is the preferred method.