Hi, if you don't want to use flashback. then possible ways.. take backup of standby database including controlfile.. then switch over.. once work done.. then restore entire files from backup and start standby else create standby using rman again.
instead of create standby using rman.. u can restore from same server.. to reduce transfer time.
But none of those are easier than using flashback. The original post was, "...is there any other way to do this method in a easier way". I don't believe any way is easier than using flashback, so the answer remains, "No".