Changing order of iteration

[rjgoif]

Right now, if I use prompt with combinatorial mode
{A | B}, with {C | D}

It will generate the following prompts in this order

• A with C
• A with D
• B with C
• B with D

That is, the combinations are iterated from right to left, as if using each combinatorial set as a digit's place in counting numbers.
Since SD does not ignore prompt term order, this leads to inflexibility. It would be nice if there was a way to reverse the current behavior, to generate:

• A with C
• B with C
• A with D
• B with D

Even more flexible but harder to implement would be a way to arbitrarily rank the iterables to specify the order. For example, maybe a way to specify

{A | B }[2], with {C | D}[1] and {E | F}[3]

to get:

• A with C and E
• A with D and E
• B with C and E
• B with D and E
• A with C and F
• A with D and F
• B with C and F
• B with D and F

The first suggestion would just require a toggle that flipped the order of iteration. The second suggestion will probably require a lot more work, as it would have to also be robust to skipped ranking numbers (e.g. [1], [4], [6] being used as people edit prompts). Maybe a simple sort function, I don't know. Compatibility with other extensions might also be a problem with additional tag language being used...