Create a token with BUSD pair

Hi, i wonder how do i change a contract wich is currently a BNB pair into a BUSD pair?

You cannot change this, you can just create a new pair. But you can exchange your BUSD for BNB and then this for your token. Routers normally do this automaticlly for you.

Sorry i dont understand. How do I create a new pair? When i provide liquidity i simply choose Busd instead of bnb without adding anything in contract?

yes, thats right, just select BUSD instead of BNB