Hi, nekromantik.
Pls don't worry, this search function is already listed in the plan of the X3II's new firmware, so we will add this function to X3II. Once there is the beta firmware for the X3II, I will release it on the forum.
What has been mentioned before and should in my opinion be implemented is faster scrolling. The forward and back arrows could skip by letter then the wheel to scroll as it does today. It would simplify things quite a bit.
It takes forever for me to scroll to a letter in the middle of the alphabet. Search will be ok, but if it anything like searching is on any other device without a keyboard (on screen keyboard only) it will be cumbersome to use. I haven't seen the x5ii search feature but I am at least willing to try it in the next beta for the x3ii.