If you wish to request two characters who appeared in the same installment, please nominate them together in that installment.
If the two characters have not appeared in the same installment, please nominate them under SW - AMT, and identify which canon each one comes from. For example, you could nominate "Amilyn Holdo (SWST) & Leia Organa (SWOT)." You can nominate more than one "crossover" tag involving the same characters, for example you can also nominate "Amilyn Holdo (SWST) & Leia Organa (Marvel comics)" and request both of those tags.
We want to clarify that when you nominate a specific canon or specify a canon in a crossover nom, you are not specifying the era in which your gift is set. For our purposes, the point of specifying canons in crossover noms (or any noms, really) is so the person offering the tag knows what canon you are expecting them to know, so they can judge whether or not they can confidently offer the tag.
However, you are welcome to include "Leia and Amilyn during the rebellion" as one of your prompts in your optional details, just as you can prompt for backstory fic/art or future fic/art or fic/art set in any era of the broader canon.
We hope that helps! Please let us know if that wasn't clear or if you have more questions.
Re: Star Wars question
If the two characters have not appeared in the same installment, please nominate them under SW - AMT, and identify which canon each one comes from. For example, you could nominate "Amilyn Holdo (SWST) & Leia Organa (SWOT)." You can nominate more than one "crossover" tag involving the same characters, for example you can also nominate "Amilyn Holdo (SWST) & Leia Organa (Marvel comics)" and request both of those tags.
We want to clarify that when you nominate a specific canon or specify a canon in a crossover nom, you are not specifying the era in which your gift is set. For our purposes, the point of specifying canons in crossover noms (or any noms, really) is so the person offering the tag knows what canon you are expecting them to know, so they can judge whether or not they can confidently offer the tag.
However, you are welcome to include "Leia and Amilyn during the rebellion" as one of your prompts in your optional details, just as you can prompt for backstory fic/art or future fic/art or fic/art set in any era of the broader canon.
We hope that helps! Please let us know if that wasn't clear or if you have more questions.