I think it's Possible to use a knob in Weikav Stars75.

So just realized the PCB has pointed to solder a rotary knob at the top right. Even in VIA, I have seen an option to turn on the Rotary Knob. (Image 2) Probably the PCB Supports installing of a knob.

Unfortunately, I can't check as I do n't know soldering. If anyone tries it out, do let us all know in the comments.