INDEX ON Lastname + IIF( LEFT(firstname,1)="K", "1", "2") ...

>i want to create an index that should sort in the following order:
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>Example:
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>"Lastname" + all firstnames that start with lets say "K" should be on the top and the others should be under "K" in any order.
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>i hope its clear.
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>any help would be highly appreciated!