This is the major paint point of the Keylab Essential mk3 in all DAWs for me: None of the DAWs allows you to move the timeline cursor with the encoder.
I can do this on the Keylab mk2 … and I can also do this on my Minilab 3 which even has much less control elements than the Keylab Essential. But since the Keylab Essential is missing a “Shift” function you cannot change the behavior of the encoder
I wrote a custom skript for the mk3 that makes the nudge buttons step further (and lots of other things.)
I am not sure if thats the behaviour you want, i use a macro key on my mouse as alt button and the free spinning mouse wheel to quickly traverse the track. (also LES not sure if that plays a role here)