you can kind of create user scales by combining scalers
so to create a pentatonic (major) scale is simple
major , followed by a blues minor transposed down 3 semis ( has to filter notes)
e.g. C Penta Minor = C Major (or just play C Major) , then Blues Minor in A.
other scales can be created similarly, sometimes rounding can also work, you just have to find the relevant ‘mask’ scale (the Blue Mn in the above example)