Imo beatjumps should be able to mapp just like in traktor or have the option *2 & /2.
One encoder and shift can do everything You need. Encoder should select the beatjump size and + shift jumping left or right.
If the loops can be control like that why not to do this with beatjump?
Another interesting solution is to add to serato software *2 and /2 button for beatjumps. Right now you need for example 4 midi buttons to mapp specific beatjump size lets say 1. 4. 8. 16. And another 2 midi buttons to jump over the beats left and right that means you need 6 buttons for beatjumps and this is still not the same great solution as traktor have. Sorry for my grammar, I don’t speak english very well but i hope You get the idea. Let me know what You think. Peace ! ;)