Is Inquisit 4 convertible into Inquisit 3 without any problems or data loss?
If your script uses functionality exclusive to Inquisit 4, it won't work in Inquisit 3. You should simply install Inquisit 3 and try.
Plus does Inquisit 3 has the option to record time-data per block? And how do I install this function?
I honestly (and unfortunately) have no idea what that's supposed to mean. Please clarify.