  We explore a novel strategy of patterning nematic elastomers that does not
require inscribing the texture directly. It is based on varying the dopant
concentration that, beside shifting the phase transition point, affects the
nematic director field via coupling between the gradients of concentration and
nematic order parameter. Rotation of the director around a point dopant source
causes topological modification manifesting itself in a change of the number of
defects. A variety of shapes, dependent on the dopant distribution, are
obtained by anisotropic deformation following the nematic--isotropic
transition.
