Migrate/Merge Products and even full Categories

[marcibet]

Hey,

I have following problem (i try to explain with example values, its easier i guess).

My actual structure contain following Categories:

- Nike Shoes

- Puma Shoes

And for example the Products in Nike Shoes are:

- Nike Magma Size 9

- Nike Magma Size 10

- Nike Magma Size 11

Now i want to rebuild that there is only 1 "Nike Magma" with combination/attribute for the size. And i want to delete the two Categories and make the new "Shoes" where than inside "Nike Magma" and "Puma Thunder" with its combinations.

My Problem is, when i just rebuild that (its no problem from that) i run into troubles that there are many links directly in the Puma Categorie for example, or Links (even in search engines or forums) to for example the "Nike Magma Size 10". This links MUST work afterwards too. So when someone hotlinked my Categorie "Nike Shoes" it should link to "Shoes" after the rebuild. And when now a link goes to "Nike Magma Size 10" it need go to the Product "Nike Magma" with the combinations in the future.

How would this be possible??
THX!