You have to create a seperate listing. Information from one account to another cannot be merged in any way.
Etsy does not want you to risk having the same item in both shops. In fact, Etsy discourages second shops in order to prevent mix-ups.
This is where I got the info from. I just copied and pasted the whole section.
http://www.etsy.com/help/article/483 :
******Multiple accounts held by one person******
Having more than one account ("multiple accounts" or "alternate accounts") is not something Etsy encourages, as it has the potential to cause confusion. Keep in mind that information and accounts ******cannot be merged in any way******, so if you change your mind later, you will not be able to transfer information (for example: ****listings,**** feedback, Favorites or purchase history) from one account to another.
All of your usernames must be clearly disclosed in the Public Profile for each account. A statement such as, "I am also on Etsy under these usernames..." would be acceptable. This includes all buying and selling accounts, as well as any collective accounts in which you are involved.
You may not use an alternate account to purchase items from yourself. This is called "shilling."
You may not list the same unique item in more than one shop on Etsy.
Etsy will not issue refunds for accidental activity stemming from multiple account ownership (for example: listing items in the wrong shop). Members who do not comply with Etsy's policies may be subject to review, which can result in suspension of account privileges and/or termination. This includes all of your accounts by virtue of association. In other words, Etsy reserves the right to suspend the use of the site for a person and all username(s) he/she operates under. Suspended or terminated members remain obligated to pay Etsy for all unpaid fees per our Terms of Use.
