16. A computer readable storage device or storage disk comprising instructions which, when executed by a processor, cause the processor to, at least: in response to a first selection of a first variant in a list of variants, the list including the first variant, a second variant, and a third variant, display a constraint indicator adjacent the second variant, the constraint indicator visually representing an undesirability of displaying both of the first variant and the second variant within the visual representation; in response to the first selection, display an allowability indicator adjacent the third variant, the allowability indicator visually representing a desirability of displaying both of the first variant and the third variant within the visual representation; and in response to a second selection of the second variant, generate a first instantiation of the visual representation including both of the first variant and the third variant, the first instantiation including the allowability indicator.
16. A computer readable storage device or storage disk comprising instructions which, when executed by a processor, cause the processor to, at least: in response to a first selection of a first variant in a list of variants, the list including the first variant, a second variant, and a third variant, display a constraint indicator adjacent the second variant, the constraint indicator visually representing an undesirability of displaying both of the first variant and the second variant within the visual representation; in response to the first selection, display an allowability indicator adjacent the third variant, the allowability indicator visually representing a desirability of displaying both of the first variant and the third variant within the visual representation; and in response to a second selection of the second variant, generate a first instantiation of the visual representation including both of the first variant and the third variant, the first instantiation including the allowability indicator. 17. The computer readable storage device or storage disk of claim 16 , wherein the instructions, when executed, further cause the processor to enable text editing of at least one of the first variant or the second variant.